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At what temperature will the speed of sound be double of its value at `0^@C ` ?

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At what temperature will the speed of sound be double of its value at `0^@C ` ?
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Correct Answer - A::C
`nu prop sqrt(T)`
`:. nu_(2)/(nu_(1)) = sqrt(T_(2)/(T_(1)))` or `T_(2) = (nu_(2)/(nu_(1)))^(2) T_(1) = (2)^(2) (273)`
`= 1092 K`
`= 819^(@)C`
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