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The lower half of a convex lens is paint...

The lower half of a convex lens is painted black. If an object is placed in front of the lens, then

A

the lower half of the iamge will disappear

B

the upper half of the image will disappear

C

the intensity of the image will be reduced to half of that due to the ful transparent lens

D

the size of the image will be half the size of the object

Text Solution

Verified by Experts

The correct Answer is:
C
As only half of the area of the lens is effective in transmitting the rays, the intensity of the image will be reduced to half of that due to the full transparent lens. Full image of less intensity is formed.
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