Which of the following is the closest formula to find the speed of sound in dry air? ( $\gamma=1.4$, M=28.97 gm/mole)
| (A) $v=\sqrt T. 20$ | (B) $v=\sqrt {T.20}$ |
| (C) $v=T.20$ | (D) $T20$ is related to Cricket only |
Tag Archives: Sound
Open Organ Pipe Reflection Q & A
Question: In closed organ pipe, the sound gets reflected from the rigid boundary. This makes sense. But, in open organ pipe there is no boundary at the end. So, how can sound reflect?
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Doppler Effect – Two vehicles, each moving with speed u………
Doppler Effect Quiz
A worker going away from a factory at a speed of 10 m/s hears siren of the factory. If the dominant frequency of the siren is 600 Hz and wind is blowing along the direction of his motion at a speed of 10 m/s, find the dominant frequency as heard by the worker. Speed of sound is 340 m/s.