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A source of sound producing wavelength 50 cm is moving away from a stationay observer with ((1)/(5) )^(th) speed of sound. Then what is the wavelength of sound received by the observer? |
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Answer» 55 CM Speed of the sound = v speed of the source , `v_(s) = (1)/(5) ` V As the source is moving away from the stationary OBSERVER, therefore the wavelength of sound received of sound received by the observer is `lambda. = ((v + v_(s))/(v)) lambda= ((V + (1)/(5) v))/(v)lambda` ` = (6)/(5) lambda = (6)/(5) xx 50 ` cm = 60 cm . correct choice is c. |
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