Q12 of 17 Page 28

How will you distinguish between a convex lens and a concave lens by holding in hand and looking on the printed page?

If the letter of the printed page appears enlarged then it is a convex lens , but if it appears diminished than it is a concave lens.


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10

What is the quantity which remains constant when light undergo refraction? Why?

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What is the nature of an image formed by a thin convex lens for a distant object?

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Why would we require a calm atmosphere to perform this experiment?

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Why it is preferred to perform this experiment in the dark or in the light?