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Which one of the following material cann...

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

A

Water

B

Glass

C

Air

D

Clay

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MODERN PUBLICATION-REFLECTION AND REFRACTION-EXAMPLE
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  3. Which one of the following material cannot be used to make a lens?

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

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

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

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  17. The magnification produced by plane mirror is +1. What does this mean?

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

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

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  20. Find the focal length of a lens of power- 2.0 D.What type of lens this...

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