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1. Question
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.
CorrectIn Doppler's formula, the speeds v_{s} and v_{l} both are with respect to the medium.
So,
So,
IncorrectIn Doppler's formula, the speeds v_{s} and v_{l} both are with respect to the medium.
So,
So,
Hint
In Doppler's formula, the speeds v_{s} and v_{l} both are with respect to the medium.