1.

A train is moving at 30 m/s in still air. The frequency of the locomotive whistle is 500 Hz and the speed of sound is 345 m/s.what would be the apparent wavelengths in front of and behind the locomotive if a wind of speed 10 m/s were blowing in the same direction as that in which the locomotive is travelling?

Answer»

`0.63m , 0.75 m`
`0.60m, 0.73m`
`0.65m, 0.78 m`
`0.60m, 0.71 m`

ANSWER :A


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