Question

An object of height 2 cm is placed at a distance
20 cm in front of a concave mirror of focal length 12 cm. Find the position, size and nature of the image ​

Answer 1

Answer:

Height of object ( h) = 2cm

Object distance ( u ) = -20cm

Focal length ( f) = -12 cm

By mirror formula,

1/v + 1/u = 1/f

1/v = -1/30

v = - 30 cm