Optics Question 449

Two convex lenses placed in contact form the image of a distant object at P. If lens 1 is moved to the right, the image will

Options:

A) Move to the left

B) Move to the right

C) Remain at P.

D) Move either to the left or right, depending upon the focal lengths of the lenses.

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Power of the system decreases due to separation between the lenses. So, the focal length increases.