Question

The distance between a 10 cm tall candle and the reflecting surface of a concave mirror is 40 cm. the radius of curvature of the mirror is 25 cm. now,

a. what is the focal length of the mirror

Answer 1

Focal length of concave mirror=

Step-by-step explanation:

The focal length is given by

`f= (R)/(2)`

R= radius of curvature=25 cm

`f= (25)/(2)`

f= 12.5 cm

Thus the radius of curvature of the concave mirror= 12.5 cm