Physics, asked by jimmy5043, 4 months ago

An object position and image position coincide at 20 cm from a concave mirror. It's focal length is

Answers

Answered by DafadeKritik

1

Answer:

10 cm

Explanation:

An object and image position can coincide at radius of curvature(R).

Focal Length = R/2 = 20/2 = 10 cm

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