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Which one of the following materials can...

Which one of the following materials cannot be used to make a lens ?

A

water

B

glass

C

plastic

D

clay

Text Solution

Verified by Experts

The correct Answer is:
A
clay
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LAKHMIR SINGH & MANJIT KAUR-REFLECTION OF LIGHT -Exercise
  1. Define one dioptre of power of a lens.

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  2. A convex lens forms a real and inverted image of a needle at a distanc...

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  3. Find the power of a concave lens of focal length 2 m.

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  4. Which one of the following materials cannot be used to make a lens ?

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  5. The image formed by a concave mirror is observed to be virtual, erect ...

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  6. Where should an object be placed in front of a convex lens to get a re...

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  7. A spherical mirror and a thin spherical lens have each a focal length ...

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  8. No matter how far you stand from a spherical mirror, your image appear...

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  9. Which of the following lenses would you prefer to use while reading sm...

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  10. We wish to obtain an erect image of an object, using a concave mirror ...

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  11. Name the type of mirror used in the following situations : (a) Head ...

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  12. One half of a convex lens is covered with a black paper. Will this len...

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  13. An object 5 cm in length is held 25 cm away from a converging lens of ...

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  14. A convcave lens of focal length 15 cm forms an image 10 cm from the le...

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  15. An object is placed at a distance of 10 cm from a convex mirror of foc...

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  16. The magnification produced by a plane mirror is m = +1. What does this...

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  17. An object 5.0 cm in length is placed at a distance of 20 cm in front o...

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  18. An object of size 7.0 cm is placed at 27 cm in front of a concave mirr...

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  19. Find the focal length of a lens of power - 2.0 D. What type of lens is...

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  20. A doctor has prescribed lens of power + 1.5 D. Find the focal length o...

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