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Saturday, November 18, 2023

light reflection and refraction class 10 questions and answers pdf

In this post, you will find questions and answers to chapter 10 - Light -  Reflection and Refraction in PDF format. You can also go through the MCQ of Chapter 10 for better performance in the examination.

light reflection and refraction class 10 questions and answers pdf
 NCERT Solutions for Class 10 Science Chapter 10


Science Class10 Chapter 10 NCERT Solutions   covers the following points

     1.    Important definitions or terms related to light

     2.    Reflection of Light

     3.    Laws of reflection

     4.    Classification of reflection

     5.    Formation of images due to reflection

     6.    Mirrors- plane and spherical mirrors

     7.    Spherical mirrors – Concave mirror and convex mirror

     8.    Important terms related to spherical mirrors

     9.    Convergence and divergence of light

    10.   Rules of the image formed by a spherical mirror

    11.    Sign convention for spherical mirror

    12.    Formation of image by a convex mirror

    13.     Formation of image by a concave mirror

    14.      Uses of mirrors

    15.     Mirror formula

    16.     Difference among concave mirror, convex, mirror, and plane mirror

    17.      Refraction of light

    18.    Laws of refraction

    19.   Refractive index and absolute refractive index

    20.    Refraction through a glass  slab

     21.  Refraction through spherical surfaces

     22.  Lens- concave lens and convex lens

     23.   Terms and their definitions related to lens

     24.    Image formation by lenses

     25.     Image formation by a concave lens and convex lens

     26.    Lens formula

     27.    Magnification

    28.       Power of lens


Light reflection and refraction class 10 questions and answers pdf 



Important points of Chapter 10-Light Reflection and Refraction


1. The ability of the eye to focus both near and far objects, by adjusting its focal length is called the accommodation of the eye.

2. The smallest distance at which the eye can see objects clearly without strain, is called the near the point of the eye or the least distance of the distinct vision. For an adult with normal vision, it is about 25 cm.

3. The common refractive defects of vision include myopia, hypermetropia, and presbyopia. Myopia(short-sightedness- the image of distant objects is focused before the retina) is corrected by using a concave lens of suitable power. Hypermetropia (farsightedness- the image of nearby objects is focused beyond the retina) is corrected by using a concave lens of suitable power. The eye loses its power of accommodation at old age.

4. The splitting of white light into its component colour is called dispersion.

5. Scattering of light causes the blue colour of the sky and the reddening of the sun at sunrise and sunset.

 6. light is a form of energy that makes the object visible.

7. When light falls on a smooth or uneven surface and comes back to the same medium, this phenomenon is called reflection.

8. in-plane mirror, the virtual image of the size of the object and at an equal distance from the mirror is formed.

9. Radius of spherical mirrors is double the focal length.

10. When the light goes from one medium to another its speed changes and the light ray bends, this phenomenon is called refraction of light.

11. In refraction, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant and called the refractive index.

12. When the light goes from a denser to a rarer medium it bends away from the normal and the angle of refraction remains greater than the angle of incidence.


 Related Searches - 

1. MCQ Questions for Class  10 Science Physics Chapter 10

2. Light- Reflection and Refraction


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