Lower half of a convex lens is made opaque. Which of the following statement describes the image of the object placed in front of the lens?
(A) No change in image
(B) Image will show only half of the object
(C) Intensity of image gets reduced
Choose the correct answer from the options given below.

Correct option is C

If half portion of a lens is covered, you are blocking half the rays incident on it. Image will be formed by the rays of the bottom half but only half as bright. Hence option C is correct.