Question

find the radius of curvature of concave mirror which has the focal length is 60cm​

Answer 1

Answer:

Hai friend

Explanation:

R= 2f

R= 2×60

R= 120

Answer 2

r= -60

f= r/2

f= -30

u= -60

v= ?

1/v+1/u= 1/f

1/v+1/-60=1/-30

1/v= 1/60-1/30

1-2/60

-1/60

So

v= -60