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Chapter 5 LIGHT MCQs

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1. . The velocity of light is:





2. . Light waves are:





3. . Corpuscular theory of light was propounded by:





4. . Wave theory of light was proposed by:





5. . The turning back of light from the boundary of a medium is called:





6. . The bending of light when it enters from one medium to another is called:





7. . The ratio of sin(i) to sin(r) is constant. This law is known as:





8. . If an object is placed at C of a concave mirror, the image formed will be:





9. . If an object is placed within the focal length of a concave mirror, the image will be:





10. . The radius of curvature of a concave mirror is 40 cm. Its focal length is:





11. . The unit for the power of a lens is:





12. . The focal length of a lens is 20 cm. Its power is:





13. . If an object is placed between F and 2F of a convex lens, the image will be:





14. . The least distance of distinct vision is:





15. . A convex lens of short focal length is used as:





16. . The bending of light towards the shadow region is called:





17. . To measure the height of distant objects we use:





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