Physics, asked by srivastavasandeep145, 3 months ago

3. The radius of curvature of a concave mirror is 20
cm. Its focal length will be
(a) -20 om
(b)-10 cm
+40 cm
(d) + 10 cm

Answers

Answered by Anuraagkrishnvatsal

0

Answer:

Option b

This is the correct answer

Answered by kailaspatil078

0

Radius R=20 cm

For mirror f=

2/R = 2/20

= 10 cm

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