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    • Posted by Harsh Waghmode 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Komal Kulhria 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Somay Mamgain 3 years, 10 months ago

    Nature of Light Light behaves as a: ray, e.g. reflection wave, e.g. interference and diffraction particle, e.g. photoelectric effect Laws of Reflection Light incident on another medium When light travels from one medium to another medium it either: gets absorbed (absorption) bounces back (reflection) passes through or bends (refraction) When light is incident on a plane mirror, most of it gets reflected, and some of it gets absorbed in the medium.

    3Thank You

    Somay Mamgain 3 years, 10 months ago

    Light: Definition Light is a form of energy that enables us to see things. Light starts from a source and bounces off objects which are perceived by our eyes and our brain processes this signal, which eventually enables us to see.

    2Thank You

    ANSWER

    • Posted by Kushan Agrawal 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Bhavya Gupta 3 years, 10 months ago

    A

    1Thank You

    Gnana Sowjanya Ghanta 3 years, 10 months ago

    The concentration of OH- ions will increase

    1Thank You

    Divyanshi Saxena 3 years, 10 months ago

    The concentration of OH- ions will likely increase if more sodium hydroxide is added to the base since the concentration of the solution will increase (the number of hydroxide ions per unit volume increases). But this will only happen when sodium hydroxide is dissolved in water. Otherwise the concentration will remain same. Hence the answer is (A) the concentration of OH- ions increase

    1Thank You

    ANSWER

    • Posted by Kushan Agrawal 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Somya Chourasiya 3 years, 10 months ago

    a.the concentration of OH- increase

    1Thank You

    ANSWER

    • Posted by Jeny James 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Tanisha Mittal 3 years, 10 months ago

    When light strikes colloidal particles , its path becomes visible . This is called scattering of light. For example - the path of sunlight becomes visible through the canopy of a dense forest because mist present in the atmosphere scatters it.

    1Thank You

    Gursimar Singh Kalsi 3 years, 10 months ago

    Spreading of light into 7 colours which is named as VIBGYOR is known as splitting of light

    0Thank You

    Komal Kulhria 3 years, 10 months ago

    Spreading of light in various directions by colloid particles

    1Thank You

    Pratik Kene 3 years, 10 months ago

    Blue light scatters because of wavelenght

    0Thank You

    Loveen Kaur 3 years, 10 months ago

    Help

    0Thank You

    ANSWER

    • Posted by Koina Shiyal 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Sania Mirza 3 years, 10 months ago

    5.5

    1Thank You

    Gnana Sowjanya Ghanta 3 years, 10 months ago

    5.5,if it goes less than that then tooth decay occurs

    1Thank You

    Pooja R Gowda 3 years, 10 months ago

    5.5

    3Thank You

    Pratik Jain 3 years, 10 months ago

    Less than 5.5

    1Thank You

    Akash Singh 3 years, 10 months ago

    What is the colour of the powder collected in a watch glass

    0Thank You

    ANSWER

    • Posted by Subhajit Mondal 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Ganesh Pujar 3 years, 10 months ago

    Baking soda:-NaHCO3 Washing soda:-Na2CO3.10H2O Bleaching powder:-CaOCl2 Plaster of Paris:-CaSO4.1/2 H2O Common salt:-NaCl

    0Thank You

    Aman Kumar Yadav 3 years, 10 months ago

    1. NaHCO3 2.Na2CO3.10 H2o. 3) CaOCL2 4)CaSo4.1/2 H2o 5) NACl

    0Thank You

    Gnana Sowjanya Ghanta 3 years, 10 months ago

    Baking soda-sodium bi carbonate or sodium hydrogen carbonate Washing soda-Na2CO3.10H2O Bleaching powder- calcium oxy chloride-CaOCl2 POP-CaSO4.1/2H2O- Calcium sulphate hemi hydrate Common salt-NaCl- Sodium chloride

    0Thank You

    Pratik Jain 3 years, 10 months ago

    nahco3 na2co3 caocl2 caso4.1/2h2o Nacl

    0Thank You

    Prayansh Patel 3 years, 10 months ago

    1.nahco3 2. Na2co3 3.caocl2 4.caso4.1/2 H2O 5. nacl

    2Thank You

    ANSWER

    • Posted by Chandbabu Pathan 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Ragini Kumari 3 years, 10 months ago

    The atomic number of an element is equal to the number of protons present in the nucleus of its atom. Atomic number of Hydrogen is Z-1

    2Thank You

    Kaif Khan 3 years, 10 months ago

    Atomic number is determined or calculated by their no•of electron

    2Thank You

    ANSWER

    • Posted by Riya Goel 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Kishanthini Kumar 3 years, 10 months ago

    CCl4

    0Thank You

    Gnana Sowjanya Ghanta 3 years, 10 months ago

    Ccl

    0Thank You

    Shiva Mishra 3 years, 10 months ago

    Kcl and ccl

    0Thank You

    ANSWER

    • Posted by Sanjana Sharma 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 4 answers

    Preeti Kumari 3 years, 10 months ago

    f=-10cm u=-15cm By using mirror's formula, = 1/f=1/v+1/u = 1/-10=1/v+1/-15 = 1/v=1/-10-(1/-15) = 1/v=-1/30 Therefore, v=-30cm

    0Thank You

    @Mrittika.Sarmah_50 . 3 years, 10 months ago

    Beyond C HOPE IT WILL BE HELPFUL ?

    0Thank You

    Ragini Kumari 3 years, 10 months ago

    Object distance u = -15cm Focal length f = - 10cm Find = image distance v Solution Write formula 1\v -1\u =1\f So 1\v = 1\f + 1\u 1\v = 1\(-10) +1\(-15) 1\v = 1\-10 - 1\15 1\v = -3-2\30 1\v = -5\30 1\v = -1\6 1\v = -6 The negative signs shows that an inverted image is generated at a distance of 6cm front of tbe given concave mirror.

    3Thank You

    Sanjana Sharma 3 years, 10 months ago

    Es ka answer Kya hai

    0Thank You

    ANSWER

    • Posted by Jeba Hussain 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Ragini Kumari 3 years, 10 months ago

    Refraction is the change in direction of light when it passes from one medium to another. The working of lense is based on the refraction light when they pass through it. A lens is a transparent material bound by two surfaces, of which one or both surfaces are spherical. It implies that a lens is bound by at least ine spherical surface. The other surface of such lenses would be plane. A lens May have two spherical surfaces, blug ging outwards.

    0Thank You

    ANSWER

    • Posted by Balraj Singh 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Ayush Goyal 3 years, 10 months ago

    Jo surrounding se elements milte hai unko bas react karke acid bante hai simple

    1Thank You

    ANSWER

    • Posted by Aman Kumar Jha 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Gnana Sowjanya Ghanta 3 years, 10 months ago

    Cardiac muscle

    0Thank You

    Kanishk Purohit 3 years, 10 months ago

    Cardiac

    0Thank You

    Sayantani Sen 3 years, 10 months ago

    Pericardium

    0Thank You

    ANSWER

    • Posted by Shahzaib Ali 3 years, 10 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Ragini Kumari 3 years, 10 months ago

    1

    0Thank You

    Bhavy Mishra 3 years, 10 months ago

    1

    0Thank You

    Sayantani Sen 3 years, 10 months ago

    1

    0Thank You

    Aman Kumar Jha 3 years, 10 months ago

    Valency of Hydrogen is 1.

    0Thank You

    Himanshu Pawar 3 years, 10 months ago

    1

    1Thank You

    ANSWER

    • Posted by Harsh Wagaskar 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Sayantani Sen 3 years, 10 months ago

    Function of blood is to carry necessary and waste materials throughout the body. It also helps in maintaining body temperature

    0Thank You

    Shekher Kumar 3 years, 11 months ago

    Vessale

    0Thank You

    ANSWER

    • Posted by Deepak Saharan 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Vyash S 3 years, 9 months ago

    H- hydrogen He- helium Li- lithium Be- beryllium B- boron C- carbon N- nitrogen O- oxygen F- fluorine Ne- neon Na- sodium Mg- magnesium Al- aluminum S- sulphur K- pottasium Ar- argon Ca- calcium Cu- copper Pb- lead Ag- silver Au- gold Mn- manganese Si- silicon P- phosphorus Zn- zinc Fe- iron

    0Thank You

    ANSWER

    • Posted by Aasmeen Akhtar 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Shemon <3 3 years, 11 months ago

    Master Mind

    0Thank You

    Aditya Ojha 3 years, 11 months ago

    Oswaal sample question paper is too good

    4Thank You

    Abhinav M M 3 years, 11 months ago

    Oswaal question bank

    2Thank You

    Chirayu Sobti 3 years, 11 months ago

    evergreen ncert examplar

    3Thank You

    # I M Pranjana Reality 3 years, 11 months ago

    Educart

    2Thank You

    ANSWER

    • Posted by Shwetha Saravanan 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Gnana Sowjanya Ghanta 3 years, 10 months ago

    CaO+H2O=Ca(OH)2 Its exothermic reaction

    0Thank You

    # I M Pranjana Reality 3 years, 11 months ago

    The beaker become hot and large amount of heat energy is released.. it is an exothermic reaction nd combination reaction Ca + H20 -> Ca(OH)2

    1Thank You

    ANSWER

    • Posted by Arpit Singh 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Sushil Kokate 3 years, 10 months ago

    Finger like structures present in small intestine help to increase the surface area of absorbtion of food.

    0Thank You

    Divya Jain 3 years, 11 months ago

    Withi the help of villi

    0Thank You

    Krishna Sharma 3 years, 11 months ago

    Have finger like structure called villi help small intestine to absorb digested food

    0Thank You

    ANSWER

    • Posted by Pawan Singh 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Krishna Sharma 3 years, 11 months ago

    Both in gaseous state

    0Thank You

    ANSWER

    • Posted by Vishwas Prabhu 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Naina Gupta 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 4 answers

    Krishna Sharma 3 years, 11 months ago

    Neutral salt

    1Thank You

    Ayushi Gupta 3 years, 11 months ago

    If acid reacts with base, then salt and hydrogen gas will form due to neutralisation reaction...

    1Thank You

    Akshay Gourgond 3 years, 11 months ago

    Salt is formed these process is called neutralization

    1Thank You

    Shreya Kumari 3 years, 11 months ago

    When strong acid and strong base react it form neutral substance

    1Thank You

    ANSWER

    • Posted by Sumedha Sahu 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 5 answers

    # I M Pranjana Reality 3 years, 11 months ago

    Because magnesium ribbon develops a layer of magnesium oxide when it reacts with oxygen present in air

    0Thank You

    Krishna Sharma 3 years, 11 months ago

    To remove layer of mgo it is done soo the reaction can done properly

    0Thank You

    Ayushi Gupta 3 years, 11 months ago

    Because magnesium ribbon reacts with oxygen to form a protective and unreactive layer of magnesium oxide which prevents it from burning.

    1Thank You

    Shreya Kumari 3 years, 11 months ago

    To remove the protective layer of magnesium oxide of magnesium ribbon

    0Thank You

    Archana Bhadouriya 3 years, 11 months ago

    Because magnesium ribbon reacts with oxygen to form a protective and unreactive layer of magnesium oxide which prevents it from burning.

    0Thank You

    ANSWER

    • Posted by Mahima Kumari 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Naina Gupta 3 years, 11 months ago

    Acid are sour in taste and corresive in nature... Base are bitter in taste and soapy in touchy ..

    0Thank You

    Aarav Sharma 3 years, 11 months ago

    Acids have H+ ions. Based have OH- ions.

    1Thank You

    Archana Bhadouriya 3 years, 11 months ago

    Acid is sour in taste while base is bitter in taste.

    1Thank You

    ANSWER

    • Posted by Irfan Raza 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Rajveer Singh Rathore 3 years, 11 months ago

    What is Aqua regia

    1Thank You

    Thakur Hans Raj 3 years, 11 months ago

    KfzlAalzazaaazkaktaul

    2Thank You

    ANSWER

    • Posted by Mamta Devi 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 4 answers

    Krishna Sharma 3 years, 11 months ago

    O degree reason is angle i=angle r=0

    0Thank You

    Rajveer Singh Rathore 3 years, 11 months ago

    Which two elements are of the same period

    0Thank You

    Thakur Hans Raj 3 years, 11 months ago

    ByzkKtktazmzrzanhdtflhzwiwhfjfjdogpgpg Rd jdtjc

    0Thank You

    Vibha Goswami 3 years, 11 months ago

    Dd

    2Thank You

    ANSWER

    • Posted by Mohammad Soheb 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Archana Bhadouriya 3 years, 11 months ago

    The rays which is parallel to the principal axis of a concave mirror after reflection converge at a point on principal axis . This point is called the principal focus.

    0Thank You

    Komal Yadav 3 years, 11 months ago

    The incident ray parallel to principal axis of a concave mirror after reflection goes through a point on principal axis and that principal focus of a concave mirror

    0Thank You

    Pranshu Singh 3 years, 11 months ago

    The point on principal axis to which all light are parallel would converge at this after reflecting from concave mirror.

    0Thank You

    ANSWER

    • Posted by Daksh Jaiswal 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Shreya Kumari 3 years, 11 months ago

    Base

    0Thank You

    Archana Bhadouriya 3 years, 11 months ago

    Base

    0Thank You

    Komal Yadav 3 years, 11 months ago

    Base

    0Thank You

    Kushagra Ranjan Das 3 years, 11 months ago

    Base

    1Thank You

    Pragya Waldia 3 years, 11 months ago

    Base Turmeric can be used as the natural indicator.

    4Thank You

    ANSWER

    • Posted by Sana Dholia 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Aasmeen Akhtar 3 years, 11 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Aarav Sharma 3 years, 11 months ago

    For MCQs you can go with evergreen MCQs book. They have a lot of different types of questions

    1Thank You

    Khushi Yadav 3 years, 11 months ago

    s chand is the best for mcqs as well as concept clearance

    1Thank You

    Kushagra Ranjan Das 3 years, 11 months ago

    Or go with Oswal for clarification

    1Thank You

    Pragya Waldia 3 years, 11 months ago

    NCERT

    2Thank You

    Vedant Bhaumik 3 years, 11 months ago

    Total ncert books. It is more than enough for exam preparation for term 1. And for mcqs ,go to google and search for term1 exam class 10 mcqs

    2Thank You

    ANSWER

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