Questions
The wavelength is 120 cm when the source is stationary. If the source is moving with relative velocity of 60 m/sec towards the observer, then the wavelength of the sound wave reaching to the observer will be (velocity of sound = 330 m/s)
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a
98 cm
b
140 cm
c
120 cm
d
144 cm
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Correct option is A
n'=n vv−vs⇒λ'=λv−vSv⇒λ'=120 330−60330=98 cm.Similar Questions
An observer is moving towards the stationary source of sound, then
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