Question

if the radius of the curvature of the concave mirror is 36 cm what is its focal length

Answer 1

Answer:

18cm

Explanation:

GIVEN- the radius of the curvature of the concave mirror is 36 cm.

FIND- focal length

SOLUTION-

R=2f

f=r/2

=36/2 =18

hence the focal length is 18 cm.

FINAL ANSWER- 18 cm

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