Question

a convex lens forms a real image of a point object placed on its principal Axis. if the upper half of the lens is painted black will the image be shifted? will the intensity of the image increase or decrease?

Answer 1

it will increased!! hope this will help u!

Answer 2

(c) the image will not be shifted
(d) the intensity of the image will decrease

If the upper half portion of the convex lens is painted, then only the intensity of the image will decrease, as the amount of light passing through the lens will decrease. Also, there will be no shift in the position of the image because all the parameters remain the same.