Question

real image of an object placed at 60cm from a concave mirror is formed at 20cm from the mirror. find focal length of mirror.

Answer 1

Focal length=2.068

It is 2.07(approx)

Answer 2

Answer:

f = -30cm

Explanation:

Distance of the object from the mirror(u) = -60 cm ( - for concave mirror)

Distance of the image from the mirror (v) = 2cm

Focal length (f) = - 30cm

Hope it helps