Question

An object is placed at a certain distance on the principal axis of a concave mirror. The
image is formed at a distance of 30 cm from the mirror. Find the object distance if
radius of curvature R 15cm
(A) 15 cm
(B)10cm
(C) 30 cm
(D) 7.5 cm
I'm getting 10cm​

Answer 1

Explanation:

30 cm is the correct answer

Answer 2

Answer:

b) 10 cm is correct option