Question

find the distance of the image when object is placed on the principal Axis at a distance of 20cm in front of a concave mirror whose radius is curvature is 8 cm​

Answer 1

Answer:

V=-5CM

Explanation:

We can solve the problem by using mirror formula, that is

1/v+1/u=1/f.

Where,

u=-20

f=-4

Putting values we get,

v=-5

Answer 2

Answer:

-5

Explanation:

use mirror formula 1/u+1\v=1\f

where f=R\2