Question

A concave mirror produces 4 times magnified image . Where the object is placed

Answer 1

Explanation:

m = 4

-v /u = 4

v = -4u

1/v + 1/u = 1/f

-1/4u + 1/u = 1/f

3 /4u = 1 /f

u = 3f/4

The object is placed between pole and focus.