(Solved): A negative lens with a focal length of \( -15 \mathrm{~cm} \) is \( 25 \mathrm{~cm} \) from a posit ...

A negative lens with a focal length of \( -15 \mathrm{~cm} \) is \( 25 \mathrm{~cm} \) from a positive lens with a focal length of \( +20 \mathrm{~cm} \) on the same asix. Parallel light from the left is incident on the negative lens. The image formed by the positive lens is real and \( 13 \mathrm{~cm} \) from the positive lens real and \( 40 \mathrm{~cm} \) from the positive lens. virtual and \( 20 \mathrm{~cm} \) from the positive lens. real and \( 20 \mathrm{~cm} \) from the positive lens.