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MHT CET Physics question

PhysicsWavesMHT CET

The speed of sound in air is v. Both source and observer are moving towards each other with equal speed u. The speed of wind is w from source to observer. Then, then ratio of the apparent frequency to the actual frequency is given by

Answer: (B)

Solution

Wind from source to observer makes the speed of sound relative to the ground , and with source and observer approaching at u each,

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Question ID VK-068626