Question

an object is placed at distance of 30 cm in front of a convex mirror of focal length 15 cm calculate Image distance, size of image. also draw ray diagram​

Answer 1

Answer:

Given,

Object distance, u = -30 cm

Focal length, f = + 15 cm

Image distance = ?

we know that,

1/u + 1/v = 1/f

1/v = 1/f - 1/u

1/v = 1/15 + 1/30

1/v = 2+1/30

1/v = 3/30 = 1/10

v = +10 cm