Question

A spherical mirror produces an image
of magnification - 1 on a screen placed
at distance of 50 cm from the mirror
* find the distance of the image
from the object
*What is the focal length of the
mirror ?​

Answer 1

Answer:

1) It is a concave mirror.

2) m= -1 , U= -50cm

m= -V/U

Therefore,

-1= -V/-50

=> V= -50cm

3) 1/V+1/U=1/f

=> 1/-50+1/-50=1/f

=> 1/-25=1/f

Therefore f= -25cm

Hope this helps:)