A wavefront comes away from a converging lens with a curvature +5 m-1. Find its curvature after it has traveled: a) 10 cm b) 20 cm c) 60 cm from the lens
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A wavefront comes away from a converging lens with a curvature +5 m-1. Find its curvature after it has traveled:
a) 10 cm
b) 20 cm
c) 60 cm from the lens
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