Physics, asked by yashpathakyash1381, 10 months ago

The radius of curvature of concave is 30cm. What is the focal lenght?

Answers

Answered by rey1860
0

Answer: 15 cm

Explanation:

Given radius of curvature (R) = 30 cm

Then its focal length (f) = \frac{R}{2} = \frac{30}{2} = 15 cm

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