mrpigmaner2830 mrpigmaner2830

15-03-2024
Physics

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Two converging lenses with focal lengths of 25 cm and 29 cm are combined to make a single lens. What is the focal length of the combination? Express your answer to two significant figures and include
a) 13 cm
b) 17 cm
c) 21 cm
d) 29 cm

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