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CAPF ACs 2021 Q1

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1. The time elapsed between viewing a lightning flash and hearing the thunder of a cloud is 10 s. If the speeds of sound and light in air are 330 m/s and 3×10^8 m/s respectively, how far away is the storm?

About 1650 m

About 3300 m

About 990 m

About 1000 m

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