Question

A converging mirror of radius of curvature 30cm makes a 3 times magnified and erect image. How far is object kept from the mirror.​

Answer 1

Answer:

R=30cm

f=15cm

u=x

v=3x

1/f=1/v+1/u

1/v=1/f-1/u

1/3x=1/15-1/x