When source of sound moves towards a stationary observer, the waveleng – InterviewSolution

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1.	When source of sound moves towards a stationary observer, the wavelength of sound received by himA. decreases while frequency increasesB. remains the same, whereas frequency increaseC. increase and frequency also increasesD. decreases while frequency remains the same
Answer» Correct Answer - A When source of sound moving towards to stationary observer. Apparent frequency `(n_(a))=n[(v)/(v-v_(s))]` Hence, the wavelength of sound received by him decreases while frequency increases.

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