A negative lens with a focal length of -15 cm is 25 cm from a positive lens with a focal length of +20 cm on the same asix. Parallel light from the left is incident on the negative lens. The image formed by the positive lens is
A) real and 40 cm from the positive lens.
B) virtual and 20 cm from the positive lens.
C) real and 20 cm from the positive lens.
D) real and 13 cm from the positive lens.
E) None of these is correct.

Question

A negative lens with a focal length of -15 cm is 25 cm from a positive lens with a focal length of +20 cm on the same asix. Parallel light from the left is incident on the negative lens. The image formed by the positive lens is
A) real and 40 cm from the positive lens. 
B) virtual and 20 cm from the positive lens. 
C) real and 20 cm from the positive lens. 
D) real and 13 cm from the positive lens. 
E) None of these is correct.

Quizplus · Accepted Answer

The Answer of  A negative lens with a focal length of -15 cm is 25 cm from a positive lens with a focal length of +20 cm on the same asix. Parallel light from the left is incident on the negative lens. The image formed by the positive lens is
A) real and 40 cm from the positive lens. 
B) virtual and 20 cm from the positive lens. 
C) real and 20 cm from the positive lens. 
D) real and 13 cm from the positive lens. 
E) None of these is correct.

A Negative Lens with a Focal Length of -15 Cm