Questions
An observer is moving towards the stationary source of sound, then
a
Apparent frequency will be less than the real frequency
b
Apparent frequency will be greater than the real frequency
c
Apparent frequency will be equal to real frequency
d
Only the quality of sound will change
detailed solution
Correct option is B
Apparent frequency in this case n'=n(v+v0)v∵v+v0v>1⇒n'n>1 i.e. n'>nTalk to our academic expert!
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An observer moves towards a stationary source of sound of frequency n. The apparent frequency heard by him is 2n. If the velocity of sound in air is 332 m/sec, then the velocity of the observer is
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