Physics, asked by charith789, 11 months ago

A concave mirror is a part of Hollosphere of radius 40.what will be the focal length of concave mirror

Answers

Answered by chijalroy0708

0

Answer:

20

Explanation:

we know the formula, f=r/2 i.e focal length=radius÷2

Answered by neerajkohli18

0

Explanation:

Radius of curvature=40

focal length is radius of curvature/2

=40/2

=20

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