The radius of the curvature of a concave mirror is 40cm. find its focal length?
Answers
Answered by
4
Given,
C = 40cm
F=?
By the formula,
C = 2F
F = C/2
F = 40/2
Therefore, F = 20cm
C = 40cm
F=?
By the formula,
C = 2F
F = C/2
F = 40/2
Therefore, F = 20cm
Answered by
3
The formula for this:
F = C/2
F = 40/2
∴ F = 20cm
F = C/2
F = 40/2
∴ F = 20cm
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