Question

Radius of curvature of 2mirrors A and B are 10cm, 15cm respectively. Find the focal length of the mirrors A and B

Answer 1

Explanation:

Focal length of A=10/2=5cm

...............................B=15/2=7.5cm

Answer 2

Answer:

A==5cm

B=7.5cm

Explanation:

f=r/2

for A F=10/2

=5cm

for B f=15/2

=7.5cm