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Question

If half part of a convex lens is covered, the focal length ___________ and the intensity of image __________.



A

changes, remains same

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B

does not change, remains same

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C

does not change, decreases

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D

changes, decreases

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Solution

The correct option is B

does not change, decreases


If half part of a convex lens is covered, the focal length does not change and the intensity of image decreases.


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