Question

the focal length of a concave mirror is 22 cm find its radius of curvature​

Answer 1

Explanation:

Radius of curvature = 2 x focal length.

So, focal length =

2

1

× radius of curvature =

2

1

×20 cm = 10 cm

Answer 2

Answer:

Radius of curvature = 2 x focal length.

Explanation:

So, focal length =

2

1

× radius of curvature =

2

1

×20 cm = 10 cm