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A convex lens is used to form an image o...

A convex lens is used to form an image of an object on a screen. If the upper half of the lens is blackened so that it becomes opaque, then

A

only half of the image will be visible

B

the image position shifts towards the lens

C

the image position shifts away from the lens

D

the brightness of the image reduces

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The correct Answer is:
D
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