At what temperature the velocity of sound in air is 1.5 times the velocity at `7^(@)C` ?

At what temperature the velocity of sound in air is 1.5 times the velocity at `7^(@)C` ?
A. `357^(@)C`
B. `476^(@)C`
C. `588^(@)C`
D. `819^(@)C`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - A
`v_(1) prop sqrt(T_(1)) and v_(2) prop sqrt(T_(2))`
`(v_(2))/(v_(1)) = sqrt((T_(2))/(T_(1))) " " :. 1.5 = sqrt((T + t)/(280))`
`280 xx 2.25 = 273 + t " " :. T = 357^(@)C`

4 views Answered 2023-02-05 15:29

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