Question

1. If the focal length of the mirror is 17 cm, then the radius of the sphere of which the mirror is a part
(b) 8.5 cm
(a) 30 cm
(c) 34cm
(d) 9 cm
Please solve the problem fast☺️☺️​

Answer 1

Answer:

34 cm

Explanation:

R=2f

R=2*17

R=34 cm

✌

Answer 2

Using formula : f = R/2

here, f = 17 cm

so, R = 2f

R = 2× 17

R = 34 cm