Question

(a) Ohm
fa) Volt
(c) Ampere (d) None of these
The focal length of a concave mirror is 10 cm. Its radius of curvature will be ?
(a) 6 cm
(b) 20 cm (c) 10 cm
(d) None of these​

Answer 1

b)20 cm.

Radius of curvature = 2× Focal length

2×10 = 20 .

hope it helps..

Answer 2

Answer:

1 27 I am going to be out of town for a u and your family are going to out of town for a few questions I will be there if you need me for anything else please let me know if you need me for anything else please let me know if you need me