{"id":4061,"date":"2016-05-06T11:49:00","date_gmt":"2016-05-06T06:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/"},"modified":"2023-03-22T16:45:34","modified_gmt":"2023-03-22T11:15:34","slug":"ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/","title":{"rendered":"NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#NCERT_Solutions_for_Class_10_Science_Light_Reflection_and_Refraction_Part_2\" >NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/a><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#1_Which_one_of_the_following_materials_cannot_be_used_to_make_a_lens\" >1. Which one of the following materials cannot be used to make a lens?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#2_The_image_formed_by_a_concave_mirror_is_observed_to_be_virtual_erect_and_larger_than_the_object_Where_should_be_the_position_of_the_object\" >2. The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#3_Where_should_an_object_be_placed_in_front_of_convex_lens_to_get_a_real_image_of_the_size_of_the_object\" >3. Where should an object be placed in front of convex lens to get a real image of the size of the object?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#4_A_spherical_mirror_and_thin_spherical_lens_have_each_of_focal_length_of_-15_cm_the_mirror_and_lens_are_likely_to_be\" >4. A spherical mirror and thin spherical lens have each of focal length of -15 cm. the mirror and lens are likely to be<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#5_No_matter_how_far_you_stand_from_a_mirror_your_image_appears_erect_The_mirror_is_likely_to_be\" >5. No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#6_Which_of_the_following_lens_would_you_prefer_to_use_while_reading_small_letters_found_in_a_dictionary\" >6. Which of the following lens would you prefer to use while reading small letters found in a dictionary?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#7_We_wish_to_obtain_an_erect_image_of_an_object_using_a_concave_mirror_of_focal_length_15_cm_What_should_be_the_range_of_distance_of_the_object_from_mirror_What_is_the_nature_of_image_Is_the_image_larger_or_smaller_than_the_object_Draw_a_ray_diagram_to_show_the_image_formation_in_this_case\" >7. We wish to obtain an erect image of an object, using a concave mirror of focal length 15 cm. What should be the range of distance of the object from mirror? What is the nature of image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#8_Name_the_type_of_mirror_used_in_the_following_situations\" >8. Name the type of mirror used in the following situations:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#9_One-half_of_a_convex_lens_is_covered_with_a_black_paper_Will_this_lens_produce_a_complete_image_of_the_object_Verify_your_answers_experimentally_Explain_your_observations\" >9. One-half of a convex lens is covered with a black paper. Will this lens produce a complete image of the object? Verify your answers experimentally. Explain your observations.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#10_An_object_5_cm_in_length_is_held_25_cm_away_from_a_converging_lens_of_focal_length_10_cm_Draw_the_ray_diagram_and_find_the_position_size_and_the_nature_of_the_image_formed\" >10. An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and the nature of the image formed.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#11_A_convex_lens_of_focal_length_15_cm_forms_an_image_10_cm_from_the_lens_How_far_is_the_object_placed_from_the_lens_Draw_the_ray_diagram\" >11. A convex lens of focal length 15 cm forms an image 10 cm from the lens. How far is the object placed from the lens? Draw the ray diagram.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#12_An_object_is_placed_at_a_distance_of_10_cm_from_a_convex_mirror_of_focal_length_15_cm_Find_the_position_and_nature_of_image\" >12. An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of image.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#13_The_magnification_produced_by_a_plane_mirror_is_1_What_does_this_means\" >13. The magnification produced by a plane mirror is +1. What does this means?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#14_An_object_50_cm_in_length_is_placed_at_a_distance_of_20_cm_in_front_of_a_convex_mirror_of_radius_of_curvature_30_cm_Find_the_position_of_the_image_its_nature_and_size\" >14. An object 5.0 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position of the image, its nature and size.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#15_An_object_of_size_70_cm_is_placed_at_27_cm_in_front_of_a_concave_mirror_of_focal_length_18_cm_At_what_distance_from_the_mirror_should_a_screen_be_placed_so_that_a_sharp_focused_image_can_be_obtained_Find_the_size_and_the_nature_of_the_image\" >15. An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed, so that a sharp focused image can be obtained? Find the size and the nature of the image.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#16_Find_the_focal_length_of_a_lens_of_power_-20_D_What_type_of_lens_is_this\" >16. Find the focal length of a lens of power -2.0 D. What type of lens is this?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#17_A_doctor_has_prescribed_a_corrective_lens_of_power_15_D_Find_the_focal_length_of_the_lens_Is_the_prescribed_lens_diverging_or_converging\" >17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#NCERT_Solutions_for_Class_10_Science\" >NCERT Solutions for Class 10 Science<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/#CBSE_app_for_Students\" >CBSE app for Students<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2 Class 10 Science Class book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE Board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 10 Science chapter wise NCERT solution for Science Book for all the chapters can be downloaded from our website and myCBSEguide mobile app for free.<\/p>\n<p style=\"text-align: center;\"><strong>NCERT solutions for Class 10 Science\u00a0Light Reflection and Refraction <a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-10-science\/1176\/ncert-solutions\/5\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/10%20Science%20Book.jpg\" alt=\"NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2\" width=\"193\" height=\"238\" \/><\/p>\n<p>NCERT Class 10 Science Chapter wise Solutions<\/p>\n<ul>\n<li>1 \u2013 Chemical Reactions and Equations<\/li>\n<li>2 \u2013 Acids, Bases and Salts<\/li>\n<li>3 \u2013 Metals and Non-metals<\/li>\n<li>4 \u2013 Carbon and Its Compounds<\/li>\n<li>5 \u2013 Periodic Classification of Elements<\/li>\n<li>6 \u2013 Life Processes<\/li>\n<li>7 \u2013 Control and Coordination<\/li>\n<li>8 \u2013 How do Organisms Reproduce?<\/li>\n<li>9 \u2013 Heredity and Evolution<\/li>\n<li>10 \u2013 Light Reflection and Refraction<\/li>\n<li>11 \u2013 Human Eye and Colourful World<\/li>\n<li>12 \u2013 Electricity<\/li>\n<li>13 \u2013 Magnetic Effects of Electric Current<\/li>\n<li>14 \u2013 Sources of Energy<\/li>\n<li>15 \u2013 Our Environment<\/li>\n<li>16 \u2013 Management of Natural Resources<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_10_Science_Light_Reflection_and_Refraction_Part_2\"><\/span>NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h6><span class=\"ez-toc-section\" id=\"1_Which_one_of_the_following_materials_cannot_be_used_to_make_a_lens\"><\/span><strong>1. Which one of the following materials cannot be used to make a lens?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Water<\/strong><\/p>\n<p><strong>(b) Glass<\/strong><\/p>\n<p><strong>(c) Plastic<\/strong><\/p>\n<p><strong>(d) Clay<\/strong><\/p>\n<p><strong>Ans. (d) <\/strong>Clay<\/p>\n<hr \/>\n<h6><span class=\"ez-toc-section\" id=\"2_The_image_formed_by_a_concave_mirror_is_observed_to_be_virtual_erect_and_larger_than_the_object_Where_should_be_the_position_of_the_object\"><\/span><strong>2. The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Between the principal focus and the centre of curvature.<\/strong><\/p>\n<p><strong>(b) At the centre of curvature<\/strong><\/p>\n<p><strong>(c) Beyond the centre of curvature<\/strong><\/p>\n<p><strong>(d) Between the pole of the mirror and its principal focus.<\/strong><\/p>\n<p><strong>Ans. (d)<\/strong> Between the pole of the mirror and its principal focus.<\/p>\n<hr \/>\n<h6><span class=\"ez-toc-section\" id=\"3_Where_should_an_object_be_placed_in_front_of_convex_lens_to_get_a_real_image_of_the_size_of_the_object\"><\/span><strong>3. Where should an object be placed in front of convex lens to get a real image of the size of the object?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) At the principal focus of the lens.<\/strong><\/p>\n<p><strong>(b) At twice the focal length<\/strong><\/p>\n<p><strong>(c) At infinity<\/strong><\/p>\n<p><strong>(d) Between the optical centre of the lens and its principal focus. <\/strong><\/p>\n<p><strong>Ans. (b) <\/strong>At twice the focal length.<\/p>\n<hr \/>\n<h6><span class=\"ez-toc-section\" id=\"4_A_spherical_mirror_and_thin_spherical_lens_have_each_of_focal_length_of_-15_cm_the_mirror_and_lens_are_likely_to_be\"><\/span><strong>4. A spherical mirror and thin spherical lens have each of focal length of -15 cm. the mirror and lens are likely to be<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Both concave<\/strong><\/p>\n<p><strong>(b) Both convex<\/strong><\/p>\n<p><strong>(c) The mirror is concave and the lens is convex<\/strong><\/p>\n<p><strong>(d) The mirror is convex and lens is concave.<\/strong><\/p>\n<p><strong>Ans. (a) <\/strong>both concave.<\/p>\n<hr \/>\n<h6><span class=\"ez-toc-section\" id=\"5_No_matter_how_far_you_stand_from_a_mirror_your_image_appears_erect_The_mirror_is_likely_to_be\"><\/span><strong>5. No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Plane<\/strong><\/p>\n<p><strong>(b) Concave<\/strong><\/p>\n<p><strong>(c) Convex<\/strong><\/p>\n<p><strong>(d) Either concave or convex. <\/strong><\/p>\n<p><strong>Ans. (d)<\/strong> either plane or convex<\/p>\n<hr \/>\n<h6><span class=\"ez-toc-section\" id=\"6_Which_of_the_following_lens_would_you_prefer_to_use_while_reading_small_letters_found_in_a_dictionary\"><\/span><strong>6. Which of the following lens would you prefer to use while reading small letters found in a dictionary?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) A convex lens of focal length 50 cm<\/strong><\/p>\n<p><strong>(b) A concave lens of focal length 50 cm<\/strong><\/p>\n<p><strong>(c) A convex lens of focal length 5 cm<\/strong><\/p>\n<p><strong>(d) A concave lens of focal length 5 cm <\/strong><\/p>\n<p><strong>Ans. (c)<\/strong> A convex lens of focal length 5 cm.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"7_We_wish_to_obtain_an_erect_image_of_an_object_using_a_concave_mirror_of_focal_length_15_cm_What_should_be_the_range_of_distance_of_the_object_from_mirror_What_is_the_nature_of_image_Is_the_image_larger_or_smaller_than_the_object_Draw_a_ray_diagram_to_show_the_image_formation_in_this_case\"><\/span><strong>7. We wish to obtain an erect image of an object, using a concave mirror of focal length 15 cm. What should be the range of distance of the object from mirror? What is the nature of image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Object must be placed in front of concave mirror between its pole and principal focus at a distance less than 15 cm.<\/p>\n<p>The image formed will be virtual and erect. The size of the image is larger the object. The ray diagram is as follows:<\/p>\n<p><img decoding=\"async\" id=\"Picture 1\" style=\"height: 139px; width: 355px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/10\/science\/ch10\/image001.png\" \/><\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6><span class=\"ez-toc-section\" id=\"8_Name_the_type_of_mirror_used_in_the_following_situations\"><\/span><strong>8. Name the type of mirror used in the following situations:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Headlights of a car<\/strong><\/p>\n<p><strong>(b) Side\/rear-view mirror of a vehicle.<\/strong><\/p>\n<p><strong>(c) Solar furnace.<\/strong><\/p>\n<p><strong>Support your answer with reason.<\/strong><\/p>\n<p><strong>Ans. (a) <\/strong>Headlights of a car- concave mirror to give parallel beam of light after reflection from concave mirror.<\/p>\n<p><strong>(b) <\/strong>Side\/rear-view mirror of vehicle- convex mirror as it forms virtual erect and diminished image to give wider view field.<\/p>\n<p><strong>(c) <\/strong>Solar furnace- concave mirror to concentrate sunlight to produce heat in solar furnace.<\/p>\n<hr \/>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"9_One-half_of_a_convex_lens_is_covered_with_a_black_paper_Will_this_lens_produce_a_complete_image_of_the_object_Verify_your_answers_experimentally_Explain_your_observations\"><\/span><strong>9. One-half of a convex lens is covered with a black paper. Will this lens produce a complete image of the object? Verify your answers experimentally. Explain your observations. <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>When one-half of a convex lens is covered with a black paper, this lens produces a complete image of the object. To prove it we perform experiment:<\/p>\n<p><img decoding=\"async\" id=\"Picture 2\" style=\"height: 156px; width: 406px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/10\/science\/ch10\/image002.png\" \/><\/p>\n<p style=\"text-align: justify;\">Take a concave mirror and cover half part of its by using black paper. Place it vertically in a stand. On one side of it place a burning candle. On opposite side of the lens fix a white screen. Adjust the position of candle or screen till clear image of burning candle is formed on the screen. We observe that the image is complete image of the object.<\/p>\n<p style=\"text-align: justify;\">From the experimental observations, we find that image formation does not depend upon the size of a lens. A similar lens can also form complete image of an object placed in front of it. However, brightness of the image decreases when some part of lens is blocked. It is because now lesser number of rays pass through the lens.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"10_An_object_5_cm_in_length_is_held_25_cm_away_from_a_converging_lens_of_focal_length_10_cm_Draw_the_ray_diagram_and_find_the_position_size_and_the_nature_of_the_image_formed\"><\/span><strong>10. An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and the nature of the image formed.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans.<\/strong> f= +10 cm, u= -25 cm and h<sub>o<\/sub>= 5 cm<\/p>\n<p><img decoding=\"async\" id=\"Picture 3\" style=\"height: 135px; width: 348px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/10\/science\/ch10\/image003.png\" \/><\/p>\n<p>1\/f = 1\/v \u2013 1\/u<\/p>\n<p>1\/v = 1\/10 -1\/15<\/p>\n<p>1\/v = 3\/50<\/p>\n<p>V = 50\/3 cm.<\/p>\n<p>The image is real and inverted at a distance of 16.7 cm from the lens on opposite side.<\/p>\n<p>Magnification (m) = h<sub>i<\/sub>\/h<sub>0<\/sub>= v\/u<\/p>\n<p>h<sub>i<\/sub> \/5 =16.7\/-25<\/p>\n<p>h<sub>i<\/sub> = -10\/3 cm. image is inverted and diminished.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"11_A_convex_lens_of_focal_length_15_cm_forms_an_image_10_cm_from_the_lens_How_far_is_the_object_placed_from_the_lens_Draw_the_ray_diagram\"><\/span><strong>11. A convex lens of focal length 15 cm forms an image 10 cm from the lens. How far is the object placed from the lens? Draw the ray diagram. <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>f= -15 cm, v= -10 cm<\/p>\n<p>1\/v -1\/u = 1\/f<\/p>\n<p>1\/u = 1\/15 \u2013 1\/10 = -1\/30<\/p>\n<p>u = -30 cm.<\/p>\n<p style=\"text-align: justify;\">Ray diagram as follows:<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 211px; width: 257px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/10\/science\/ch10\/image004.png\" \/><\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"12_An_object_is_placed_at_a_distance_of_10_cm_from_a_convex_mirror_of_focal_length_15_cm_Find_the_position_and_nature_of_image\"><\/span><strong>12. An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of image.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>f = +15 cm, u = -10 cm.<\/p>\n<p>1\/f = 1\/v +1\/u<\/p>\n<p>1\/v = 1\/15 +1\/10<\/p>\n<p>1\/v = 5\/30<\/p>\n<p>v = + 30 cm.<\/p>\n<p>The image is formed 6 cm behind the mirror, it is a virtual and erect image.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"13_The_magnification_produced_by_a_plane_mirror_is_1_What_does_this_means\"><\/span><strong>13. The magnification produced by a plane mirror is +1. What does this means?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>m= h<sub>i<\/sub>\/h<sub>0<\/sub>= v\/u<\/p>\n<p>Magnification produced by a plane mirror is +1 which means that size of image formed is exactly equal to size of object behind the mirror.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"14_An_object_50_cm_in_length_is_placed_at_a_distance_of_20_cm_in_front_of_a_convex_mirror_of_radius_of_curvature_30_cm_Find_the_position_of_the_image_its_nature_and_size\"><\/span><strong>14. An object 5.0 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position of the image, its nature and size.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Radius of curvature (R) = 30 cm<\/p>\n<p>f = R\/2 = 30\/2 = 15 cm<\/p>\n<p>u = &#8211;20 cm, h= 5 cm.<\/p>\n<p>1\/v +1\/u = 1\/f<\/p>\n<p>1\/v = 1\/15+ 1\/20 = 7\/60<\/p>\n<p>v = 60\/7 = 8.6 cm.<\/p>\n<p>image is virtual and erect and formed behind the mirror.<\/p>\n<p>h<sub>i<\/sub>\/h<sub>0<\/sub>= v\/u<\/p>\n<p>h<sub>i<\/sub>\/5= 8.6\/20<\/p>\n<p>h<sub>i <\/sub>= 2.2 cm.<\/p>\n<p>Size of image is 2.2 cm.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"15_An_object_of_size_70_cm_is_placed_at_27_cm_in_front_of_a_concave_mirror_of_focal_length_18_cm_At_what_distance_from_the_mirror_should_a_screen_be_placed_so_that_a_sharp_focused_image_can_be_obtained_Find_the_size_and_the_nature_of_the_image\"><\/span><strong>15. An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed, so that a sharp focused image can be obtained? Find the size and the nature of the image. <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>u = &#8211; 27 cm, f = &#8211; 18 cm. h<sub>o<\/sub>= 7.0 cm<\/p>\n<p>1\/v = 1\/f- 1\/u<\/p>\n<p>1\/v = -1\/18 + 1\/27 = -1\/54<\/p>\n<p>V = &#8211; 54 cm.<\/p>\n<p>Screen must be placed at a distance of 54 cm from the mirror in front of it.<\/p>\n<p>h<sub>i<\/sub>\/h<sub>0<\/sub>= v\/u<\/p>\n<p>h<sub>i<\/sub>\/h<sub>0<\/sub>= v\/u<\/p>\n<p>h<sub>i<\/sub>\/7 = +54\/-27<\/p>\n<p>h<sub>i<\/sub> = -2 x 7 = -14 cm.<\/p>\n<p>Thus, the image is of 14 cm length and is inverted image.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"16_Find_the_focal_length_of_a_lens_of_power_-20_D_What_type_of_lens_is_this\"><\/span><strong>16. Find the focal length of a lens of power -2.0 D. What type of lens is this?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Power of lens (P) = -2.0 D<\/p>\n<p>P = 1\/f or f = 1\/m<\/p>\n<p>f = 1\/-2.0 = -0.5 m.<\/p>\n<p>(-ve) sign of focal length means that the lens is concave lens.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"17_A_doctor_has_prescribed_a_corrective_lens_of_power_15_D_Find_the_focal_length_of_the_lens_Is_the_prescribed_lens_diverging_or_converging\"><\/span><strong>17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>P = +1.5 D<\/p>\n<p>f = 1\/P = 1\/+1.5 = 0.67 m.<\/p>\n<p>As the power of lens is (+ve), the lens is converging lens.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_10_Science\"><\/span>NCERT Solutions for Class 10 Science<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NCERT Solutions Class 10 Science PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 10 Science includes text book solutions from Book. NCERT Solutions for CBSE Class 10 Science have total 16 chapters. 10 Science NCERT Solutions in PDF for free Download on our website. Ncert Science class 10 solutions PDF and Science ncert class 10 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_app_for_Students\"><\/span>CBSE app for Students<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To download\u00a0NCERT Solutions for class 10 Social Science, Computer Science, Home Science,Hindi ,English, Maths Science do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and myCBSEguide website.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2 Class 10 Science Class book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE Board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked &#8230; <a title=\"NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-light-reflection-and-refraction-part-2\/\" aria-label=\"More on NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":30036,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[281,1367],"tags":[1043,283,438,216,349],"class_list":["post-4061","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ncert-solutions","category-science-cbse-class-10","tag-cbse-class-10-science","tag-cbse-study-material","tag-class-10","tag-ncert-solutions","tag-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2 | myCBSEguide<\/title>\n<meta name=\"description\" content=\"NCERT Solutions for Class 10 Science Light Reflection and Refraction Part 2 in PDF format for free download. 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