A) Half the image will disappear
B) Upper half the image will disappear
C) Complete image will be formed of decreased intensity
D) Complete image will disappear
Correct Answer: C
Solution :
If lower part of the lens is covered then its focal length will remain unchanged and complete image will be obtained, but intensity of the image will be less as well as the rays coming from the object will not pass through the less so brightness of image will decrease.
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