Question

Akash placed a candle in front of a convex lens and obtained an image as shown below.

Now he covered the upper half of the lens with a black paper. What can you say about the image formed?

• A. No image will be formed
• B. Image of only the lower half of the candle will be formed
• C. No difference will be observed even after covering the upper half of lens with black paper
• D. Image of same size will be formed but its intensity will be less

Answer 1

The correct option is D

Image of same size will be formed but its intensity will be less

Image of the candle will be of the same size as before. But as half of the lens is covered with a black paper, the intensity of the image will be less as a large number of rays will be blocked by the black paper.