NEET | 2017Sound WavesHard
Question
20. Tow cars moving in opposite directions approach each other with speed of 22 m/s and 16.5 m/s respectively. The driver of the first car blows a horn having a a frequency 400 Hz. The frequency heard by the driver of the second car is [velocity of sound 340 m/s] :-
Options
A.
361 Hz
B.
411 Hz
C.
448 Hz
D.
350 Hz
Solution
As we know for given condition
fapp = f0
fapp = 448 Hz
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