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Question

Calculate focal length of a spherical mirror from the following observations.

Object distance, u=(50.1±0.5)cm and image distance, v=(20.1±0.2) cm.

A
f=(14.3±0.2) mm
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B
f=(14.3±0.2) cm
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C
f=(14.3±0.4) cm
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D
None of these
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