Question

A diverging lens is placed on the axis of a concave mirror of focal length 15 cm at a distance of 15cm from the mirror . When an object is placed 30 cm from the lens , an inverted image is formed on the object itself . Find the focal length of the lens .​

Answer 1

Answer:

-30cm

Explanation:

1/f=1/v-1/u

V=-15,u=-30