{"id":31703,"date":"2026-07-29T13:15:18","date_gmt":"2026-07-29T07:45:18","guid":{"rendered":"https:\/\/mycbseguide.com\/blog\/?p=31703"},"modified":"2026-07-29T13:16:23","modified_gmt":"2026-07-29T07:46:23","slug":"light-mirrors-and-lenses-ncert-solutions-class-8-science-curiosity","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/light-mirrors-and-lenses-ncert-solutions-class-8-science-curiosity\/","title":{"rendered":"Light &#8211; Mirrors and Lenses &#8211; NCERT Solutions Class 8 Science (Curiosity)"},"content":{"rendered":"\n<p><strong><strong>Light &#8211; Mirrors and Lenses<\/strong><\/strong> &#8211; NCERT Solutions Class 8 Science (Curiosity) includes all the questions with solutions given in the NCERT Class 8 Science (Curiosity).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">NCERT Solutions Class 8<\/h2>\n\n\n<a class=\"mks_button mks_button_small rounded\" href=\"https:\/\/mycbseguide.com\/blog\/category\/ncert-solutions\/ncert-solutions-class-8\/ncert-solutions-class-8-english-poorvi\/\" target=\"_self\" style=\"color: #FFFFFF; background-color: #0066bf;\" >English Poorvi<\/a>\n\n\n<a class=\"mks_button mks_button_small rounded\" href=\"https:\/\/mycbseguide.com\/blog\/category\/ncert-solutions\/ncert-solutions-class-8\/ncert-solutions-class-8-hindi-malhar\/\" target=\"_self\" style=\"color: #FFFFFF; background-color: #0066bf;\" >Hindi Malhar<\/a>\n\n\n<a class=\"mks_button mks_button_small rounded\" href=\"https:\/\/mycbseguide.com\/blog\/category\/ncert-solutions\/ncert-solutions-class-8\/ncert-solutions-class-8-maths-ganita-prakash\/\" target=\"_self\" style=\"color: #FFFFFF; background-color: #0066bf;\" >Maths Ganita Prakash<\/a>\n\n\n<a class=\"mks_button mks_button_small rounded\" href=\"https:\/\/mycbseguide.com\/blog\/category\/ncert-solutions\/ncert-solutions-class-8\/ncert-solutions-class-8-science-curiosity\/\" target=\"_self\" style=\"color: #FFFFFF; background-color: #0066bf;\" >Science Curiosity<\/a>\n\n\n<a class=\"mks_button mks_button_small rounded\" href=\"https:\/\/mycbseguide.com\/blog\/category\/ncert-solutions\/ncert-solutions-class-8\/ncert-solutions-class-8-social-exploring-society\/\" target=\"_self\" style=\"color: #FFFFFF; background-color: #0066bf;\" >Social Exploring Society<\/a>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>Light &#8211; Mirrors and Lenses<\/strong><\/strong> \u2013 NCERT Solutions<\/h2>\n\n\n\n<p><strong>Q.1: Can we make mirrors which can give enlarged or diminished images?<\/strong><\/p>\n\n\n\n<p>Solution:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Yes! Concave mirrors can make enlarged (bigger) images when objects are close, like a dentist&#8217;s mirror for seeing teeth better.\u00a0<\/li>\n\n\n\n<li>Convex mirrors always make diminished (smaller) images, like side-view mirrors on cars that show a wider view but make things look tinier.<\/li>\n<\/ul>\n\n\n\n<p><strong>Q.2: On side-view mirrors of vehicles, there is a warning that says &#8220;Objects in mirror are closer than they appear&#8221;. Why is this warning written there?<\/strong><\/p>\n\n\n\n<p>Solution:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>These are convex mirrors, which make images smaller and show a bigger area behind the vehicle.\u00a0<\/li>\n\n\n\n<li>But because things look smaller, they seem farther away than they really are.\u00a0<\/li>\n\n\n\n<li>The warning reminds drivers that cars or bikes might be closer to avoid accidents.<\/li>\n<\/ul>\n\n\n\n<p><strong>Q.3: Why is there a curved line on some reading glasses?<\/strong><\/p>\n\n\n\n<p>Solution:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reading glasses often use convex lenses, which are curved to help focus light and make small text look bigger.\u00a0<\/li>\n\n\n\n<li>The curve helps bend light rays to fix vision problems, like making far or near things clearer.<\/li>\n<\/ul>\n\n\n\n<p><strong>Q.4: A light ray is incident on a mirror and gets reflected by it (Figure). The angle made by the incident ray with the normal to the mirror is 40\u00b0. What is the angle made by the reflected ray with the mirror?<\/strong><br><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1756113344-32yerp.jpg\"><\/p>\n\n\n\n<p>Options:<br>(1) 40\u00b0<br>(2) 50\u00b0 \u2705<br>(3) 45\u00b0<br>(4) 60\u00b0<\/p>\n\n\n\n<p>Explanation: The angle of incidence is 40\u221840\u2218 (between incident ray and normal). By the law of reflection, the angle of reflection is also 40\u221840\u2218. So, the angle between the reflected ray and the mirror is 90\u2218\u221240\u2218=50\u221890\u2218\u221240\u2218=50\u2218.<\/p>\n\n\n\n<p><strong>Q.5: Figure shows three different situations where a light ray falls on a\u00a0mirror:<\/strong><br><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1755674841-fwet3b.jpg\"><\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>The light ray falls along the normal<\/li>\n\n\n\n<li>The mirror is tilted, but the light ray still falls along the normal to the tilted surface.\u00a0<\/li>\n\n\n\n<li>The mirror is tilted, and the light ray falls at an angle of 20\u00b0 from the normal.\u00a0<\/li>\n<\/ol>\n\n\n\n<p><strong>Draw the reflected ray in each case (Use a ruler and protractor for accurate drawing). What is the angle of reflection in each case?<\/strong><\/p>\n\n\n\n<p>Solution:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>When the ray falls along the normal, the reflected ray goes back along the same path. Angle of reflection = 0\u00b0.<\/li>\n\n\n\n<li>For the tilted mirror with ray along the normal, reflected ray goes back along the normal. Angle = 0\u00b0.<\/li>\n\n\n\n<li>For the ray at 20\u00b0 to the normal, reflected ray is also at 20\u00b0 to the normal on the other side. Angle of reflection = 20\u00b0.<\/li>\n<\/ol>\n\n\n\n<p>Q.6: <strong>In Fig., the cap of a sketch pen is placed in front of three types of mirrors. Match each image with the correct mirror.<\/strong><br><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1756113899-5kr5zx.jpg\"><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Image<\/strong><\/td><td><strong>Mirror<\/strong><\/td><\/tr><tr><td>(i)<\/td><td>Plane mirror<\/td><\/tr><tr><td>(ii)<\/td><td>Convex mirror<\/td><\/tr><tr><td>(iii)<\/td><td>Concave mirror<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Solution:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Convex mirror (small and erect).<\/li>\n\n\n\n<li>Concave mirror (enlarged image).<\/li>\n\n\n\n<li>Plane mirror (same size and erect).<\/li>\n<\/ol>\n\n\n\n<p><strong>Q.7: In Figure\u00a0the cap of a sketch pen is placed behind a convex lens, a concave lens, and a flat transparent glass piece- all at the same distance. Match each image with the correct type of lens or glass.<\/strong><br><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1755679021-5gd6ug.jpg\"><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Image<\/strong><\/td><td><strong>Lens\/glass type<\/strong><\/td><\/tr><tr><td>(i)<\/td><td>Flat transparent glass piece<\/td><\/tr><tr><td>(ii)<\/td><td>Convex lens<\/td><\/tr><tr><td>(iii)<\/td><td>Concave lens<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Solution:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Convex lens (enlarged if close).<\/li>\n\n\n\n<li>Concave lens (diminished and erect).<\/li>\n\n\n\n<li>Flat transparent glass piece (same size, no change).<\/li>\n<\/ol>\n\n\n\n<p><strong>Q.8: When the light is incident along the normal on the mirror, which of the following statements is true:<\/strong><\/p>\n\n\n\n<p>Options:<br>(1) Angle of incidence is 90\u00b0<br>(2) Angle of incidence is 0\u00b0 \u2705<br>(3) Angle of reflection is 90\u00b0<br>(4) No reflection of light takes place in this case<\/p>\n\n\n\n<p>Explanation: The ray hits straight on, so incidence and reflection angles are both 0\u00b0, and it bounces straight back.<\/p>\n\n\n\n<p><strong>Q.9: Three mirrors-plane, concave and convex are placed in figure. On the basis of the images of the graph sheet formed in the mirrors, identify the mirrors and write their names above the mirrors.<\/strong><br><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1755679318-ap647x.jpg\"><\/p>\n\n\n\n<p>Solution:<\/p>\n\n\n\n<p>Left: Plane mirror (straight lines, same size).<br>Middle: Concave mirror (lines curve inward, can enlarge).<br>Right: Convex mirror (lines curve outward, diminished view).<\/p>\n\n\n\n<p><strong>Q.10: In a museum, a woman walks towards a large convex mirror Figure.\u00a0She will see that:<\/strong><br><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1755680074-p3wcjs.jpg\"><\/p>\n\n\n\n<p>Options:<br>(1) her erect image keeps decreasing in size. \u2705<br>(2) her inverted image keeps decreasing in size.<br>(3) her inverted image keeps increasing in size and eventually it becomes erect and magnified.<br>(4) her erect image keeps increasing in size.<\/p>\n\n\n\n<p>Explanation: Convex mirrors always show erect, smaller images that get even tinier as you get closer.<\/p>\n\n\n\n<p><strong>Q.11: Hold a magnifying glass over text and identify the distance where you can see the text bigger than they are written. Now move it away from the text. What do you notice? Which type of lens is a magnifying glass?<\/strong><\/p>\n\n\n\n<p>Solution: When close, the text looks bigger (enlarged and erect). As you move it away, the image might flip upside down and change size. A magnifying glass is a convex lens.<\/p>\n\n\n\n<p><strong>Q.12: Match the entries in Column I with those in Column II.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Column I<\/strong><\/td><td><strong>Column II<\/strong><\/td><\/tr><tr><td>(i) Concave mirror<\/td><td>(a) Spherical mirror with a reflecting surface that curves inwards.<\/td><\/tr><tr><td>(ii) Convex mirror<\/td><td>(b) It forms an image which is always erect and diminished in size.<\/td><\/tr><tr><td>(iii) Convex lens<\/td><td>(c) Object placed behind it may appear inverted at some distance.<\/td><\/tr><tr><td>(iv) Concave lens<\/td><td>(d) Object placed behind it always appears diminished in size.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Solution:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Column I<\/strong><\/td><td><strong>Column II<\/strong><\/td><\/tr><tr><td>(i) Concave mirror<\/td><td>(a) Spherical mirror with a reflecting surface that curves inwards.<\/td><\/tr><tr><td>(ii) Convex mirror<\/td><td>(b) It forms an image which is always erect and diminished in size.<\/td><\/tr><tr><td>(iii) Convex lens<\/td><td>(c) Object placed behind it may appear inverted at some distance.<\/td><\/tr><tr><td>(iv) Concave lens<\/td><td>(d) Object placed behind it always appears diminished in size.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Q.13: <strong>Assertion (A): <\/strong>Convex mirrors are preferred for observing the traffic behind us.<br><strong>Reason (R): <\/strong>Convex mirrors provide a significantly larger view area than plane mirrors.<\/p>\n\n\n\n<p>Options:<br>(1) Both A and R are true and R is the correct explanation of A. \u2705<br>(2) Both A and R are true but R is not the correct explanation of A.<br>(3) A is true but R is false.<br>(4) A is false but R is true.<\/p>\n\n\n\n<p>Explanation: Both A and R are true and R is the correct explanation of A.<\/p>\n\n\n\n<p><strong>Q.14: In Figure, note that O stands for object, M for mirror, and I for image. Which of the following statements is true?<\/strong><br><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1755682038-smkc5n.jpg\"><\/p>\n\n\n\n<p>Options:<br>(1) Figure (a) indicates a plane mirror and Figure (b) indicates a concave mirror.<br>(2) Figure (a) indicates a convex mirror and Figure (b) indicates a concave mirror. \u2705<br>(3) Figure (a) indicates a concave mirror and Figure (b) indicates a convex mirror.<br>(4) Figure (a) indicates a plane mirror and Figure (b) indicates a convex mirror.<\/p>\n\n\n\n<p>Explanation: Concave mirror shows enlarged image; convex shows smaller image.<\/p>\n\n\n\n<p><strong>Q.15: Place a pencil behind a transparent glass tumbler (Fig. a). Now fill the tumbler halfway with water (Fig. b). How does the pencil appear when viewed through the water? Explain why its shape appears changed.<\/strong><br><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1755682279-rxe366.jpg\"><\/p>\n\n\n\n<p>Solution: The pencil looks bent or broken at the water surface. This is because light bends (refracts) when going from water to air, making the part in water look shifted.<\/p>\n\n\n\n<p><strong>Q.16: Visit a nearby hospital or the clinic of an ENT specialist, or a dentist, with your teacher or parents. Request the doctor to show you the mirrors used for examining ear, nose, throat, and teeth. Identify the kind of mirror used in these instruments.<\/strong><\/p>\n\n\n\n<p>Solution: Dentists use concave mirrors to get a bigger, clearer view of your teeth- it makes small areas look enlarged so they can spot problems easily. ENT doctors also use concave mirrors (sometimes on a headband) to focus light and see inside your ear, nose, or throat better. These mirrors curve inwards to magnify things when held close. It&#8217;s safe and helps doctors do their job without hurting you!<\/p>\n\n\n\n<p><strong>Q.17: Harnessing sunlight is key to solving future energy challenges. In devices like solar cookers (Fig.), mirrors are used to converge sunlight and generate heat. In India, such designs are used in villages, thus saving electricity and reducing fossil fuel use. Think of a design for a solar cooker for your school or home and prepare a detailed proposal for it including the budget required.<\/strong><br><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1755682511-5ajdpb.jpg\"><\/p>\n\n\n\n<p>Solution: Solar cookers are great for using free sunlight to cook food without gas or electricity- perfect for saving energy in villages or at home!<br><strong>My Design Idea:<\/strong>\u00a0Let&#8217;s make a simple box-type solar cooker. It&#8217;s like a cardboard box lined with shiny materials to trap heat. Inside, place a big concave mirror at the bottom to focus sunlight onto a black cooking pot (black absorbs heat better). Cover the top with a clear glass lid to let light in but keep heat inside. Add aluminum foil on the inside walls for extra reflection. You can adjust the box to face the sun.<br><strong>How It Works:<\/strong>\u00a0The concave mirror curves inwards to converge sunlight, making a hot spot on the pot to cook things like rice or veggies in 1-2 hours on a sunny day.<br><strong>Materials and Budget (in \u20b9):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cardboard box (big enough for a pot): \u20b9 100<\/li>\n\n\n\n<li>Aluminum foil (for lining and reflecting): \u20b9 50<\/li>\n\n\n\n<li>Concave mirror (small one from a science kit): \u20b9 150<\/li>\n\n\n\n<li>Glass sheet for lid: \u20b9 200<\/li>\n\n\n\n<li>Black paint for the pot: \u20b9 50<\/li>\n\n\n\n<li>Glue and tape: \u20b9 50<\/li>\n<\/ul>\n\n\n\n<p><strong>Total Budget:<\/strong>&nbsp;\u20b9 600. This is affordable and eco-friendly- try building it with friends and test cooking something simple!<\/p>\n\n\n\n<p><strong>Q.18: Use online tools or animation to do virtual experiments with spherical mirrors and lenses. Move objects in the simulation and observe how the image changes.<\/strong><\/p>\n\n\n\n<p>Solution: <strong>Activity:<\/strong>\u00a0Use online tools to play with spherical mirrors and lenses. Move objects and see image changes.<br><strong>Simple Answer:<\/strong>\u00a0Go to free websites like PhET Interactive Simulations (search &#8220;PhET geometric optics&#8221; or &#8220;mirrors and lenses&#8221;). They&#8217;re like virtual labs!<br><strong>What I Observed:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Concave Mirror:<\/strong>\u00a0Place an object close- it shows a big, upright (erect) image, great for magnifying. Move it farther- the image flips upside down (inverted) and gets smaller.<\/li>\n\n\n\n<li><strong>Convex Mirror:<\/strong>\u00a0Always shows a small, upright image that gives a wide view, like in car mirrors- things look tinier but you see more area.<\/li>\n\n\n\n<li><strong>Convex Lens:<\/strong>\u00a0Close object = big, upright image (like a magnifying glass). Far object = inverted and smaller.<\/li>\n\n\n\n<li><strong>Concave Lens:<\/strong>\u00a0Always small, upright images that spread out light- used in glasses to fix vision.<\/li>\n<\/ul>\n\n\n\n<p>It&#8217;s super fun- change distances and see how images flip or resize. This helps understand why dentists use concave mirrors or why cameras have lenses!<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Light &#8211; Mirrors and Lenses &#8211; NCERT Solutions Class 8 Science (Curiosity) includes all the questions with solutions given in the NCERT Class 8 Science (Curiosity). NCERT Solutions Class 8 Light &#8211; Mirrors and Lenses \u2013 NCERT Solutions Q.1: Can we make mirrors which can give enlarged or diminished images? Solution: Q.2: On side-view mirrors &#8230; <a title=\"Light &#8211; Mirrors and Lenses &#8211; NCERT Solutions Class 8 Science (Curiosity)\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/light-mirrors-and-lenses-ncert-solutions-class-8-science-curiosity\/\" aria-label=\"More on Light &#8211; Mirrors and Lenses &#8211; NCERT Solutions Class 8 Science (Curiosity)\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[281,2083,2112],"tags":[216],"class_list":["post-31703","post","type-post","status-publish","format-standard","hentry","category-ncert-solutions","category-ncert-solutions-class-8","category-ncert-solutions-class-8-science-curiosity","tag-ncert-solutions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Light - Mirrors and Lenses - NCERT Solutions Class 8 Science (Curiosity) | myCBSEguide<\/title>\n<meta name=\"description\" content=\"Light - Mirrors and Lenses - NCERT Solutions Class 8 Science (Curiosity) includes all the questions with solutions\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mycbseguide.com\/blog\/light-mirrors-and-lenses-ncert-solutions-class-8-science-curiosity\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Light - Mirrors and Lenses - NCERT Solutions Class 8 Science (Curiosity) | myCBSEguide\" \/>\n<meta property=\"og:description\" content=\"Light - Mirrors and Lenses - NCERT Solutions Class 8 Science (Curiosity) includes all the questions with solutions\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mycbseguide.com\/blog\/light-mirrors-and-lenses-ncert-solutions-class-8-science-curiosity\/\" \/>\n<meta property=\"og:site_name\" content=\"myCBSEguide\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/mycbseguide\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-29T07:45:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-29T07:46:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/question_images\/1756113344-32yerp.jpg\" \/>\n<meta name=\"author\" content=\"myCBSEguide\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@mycbseguide\" \/>\n<meta name=\"twitter:site\" content=\"@mycbseguide\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"myCBSEguide\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/mycbseguide.com\/blog\/light-mirrors-and-lenses-ncert-solutions-class-8-science-curiosity\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/mycbseguide.com\/blog\/light-mirrors-and-lenses-ncert-solutions-class-8-science-curiosity\/\"},\"author\":{\"name\":\"myCBSEguide\",\"@id\":\"https:\/\/mycbseguide.com\/blog\/#\/schema\/person\/10b8c7820ff29025ab8524da7c025f65\"},\"headline\":\"Light &#8211; 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