Questions
Suppose that the speed of sound in air at a given temperature is 400 m/sec. An engine blows a whistle at 1200 Hz frequency. It is approaching an observer at the speed of 100 m/sec. What is the apparent frequency as heard by the observer
detailed solution
Correct option is D
n'=n vv−vS=1200 400400−100=1600 HzTalk to our academic expert!
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