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A bomb explodes on the moon. How long will it take for the sound to reach the earth
A. 10 sec
B. 1000 sec
C. 1 day
D. None of these

1 Answer

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Best answer
Correct Answer - A
`-(KQq)/(a)-(K2Q^(2))/(2a)+(2KQq)/(a)gt0" "thereforeqgtQ`

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