Question

An object is placed at 36 cm in front of concave mirror of focal length 24 cm. Find out the distance of image formed.
Solution:
Given, f = -24 cm, u = -36 cm, v = ?

Answer 1

so,1/v=(1/-24)-(1/-36)

=1/v=1/-24+1/36

=1/v=2-3/72y

=1/v=-1/72

so,v=-72=answer