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Mechanical Properties Of Fluids

Question
CBSEENPH11019087
Wired Faculty App

Show that when an observer moves towards or away from the source with same speed, the apparent change in frequency is same.

Solution
Let a source of sound be emitting the waves of frequency v.
Let V be the velocity of sound.
The apparent frequency of wave received by observer when observer moves with velocity u is, 
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        straight v subscript 2 equals fraction numerator straight V minus straight u over denominator straight V end fraction straight v          [moves away from source] 
∴               increment straight v subscript 1 equals straight v subscript 1 minus straight v equals straight u over straight V straight v           ...(1) 
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Hence the result. 

Some More Questions From Mechanical Properties of Fluids Chapter

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What type of wave is sound wave when it travels in air?

What type of wave is sound wave when it travels in solids?

Which of the two - sound or light is longitudinal in nature?

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