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With the help of a diagram, explain why ...

With the help of a diagram, explain why the image of an object viewed through a concave lens appears smaller and closer than the object.

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LAKHMIR SINGH & MANJIT KAUR-REFRACTION OF LIGHT-Exercise
  1. Give the position, size and nature of image formed by a concave lens w...

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  2. Which type of lens is: a) a converging lens, and which is (b) a diverg...

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  3. With the help of a diagram, explain why the image of an object viewed ...

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  4. How would a pencil look like if you saw it through a) a concave lens, ...

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  5. a) An object is placed 10 cm from a lens of focal length 5 cm. Draw th...

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  6. a) Construct ray diagrams to illustrate the formation of a virtual ima...

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  7. When an object is kept at any distance in front of a concave lens, the...

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  8. When sunlight is concentrated on a piece of paper by a spherical mirro...

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  9. A beam of parallel light rays is incident through the holes on one sid...

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  10. A beam of light is incident through the holes on one side of a box eme...

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  11. Which of the following can form a virtual image which is always smalle...

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  12. When an object is placed 10 cm in front of lens A, the image is real, ...

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  13. When a fork is seen through lenses A and B one by one, it appears as s...

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  14. What kind of lens can form: a) an inverted magnified image? an ere...

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  15. The lens A produces a magnification of, -0.6 whereas lens produces a m...

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  16. A 50 cm tall object is at a very large distance from a diverging lens....

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  17. An object is placed at a distance of 4 cm from a concave lens of focal...

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  18. A concave lens of focal length 15 cm forms an image 10 cm from the len...

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  19. An object 60 cm from a lens gives a virtual image at distance of 20 cm...

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  20. A concave lens of 20 cm focal length forms an image 15 cm from the len...

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