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A small source of sound moves on a circle as shown in the figure and an observer is standing on O. Let n₁, n₂ and n₃ be the frequencies heard when the source is at A, B and C respectively. Then

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n1>n2>n3

n2>n3>n1

n1=n2>n3

n2>n1>n3

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detailed solution

Correct option is B

At point A, source is moving away from observer so apparent frequency n1n and point C source is moving perpendicular to observer so n3=nHence n2>n3>n1

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A small source of sound moves on a circle as shown in the figure and an observer is standing on O. Let n1, n2 and n3 be the frequencies heard when the source is at A, B and C respectively. Then

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A small source of sound moves on a circle as shown in the figure and an observer is standing on O. Let n₁, n₂ and n₃ be the frequencies heard when the source is at A, B and C respectively. Then