Question

Find the location of the image formed (v) for a concave mirror of focal length 10 cm when the object is kept at (i) 15 cm (ii) 10 cm.

Answer 1

Answer:

v= 30

Explanation:

1/u + 1/v =1/f where,

u = object distance from mirror

v= image distance from mirror

f= focal length

(i) u=15

f=10

1/v =1/f - 1/u = 1/10 - 1/15 = 15 - 10 / 150 = 5/150

= 1/30

v=30

hence , image formed beyond 2f