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MHT CET Physics question

PhysicsWavesMHT CET

A train A is travelling at a speed of 108 km hr. The train approaches another train B standing on the platform. The engine of the train B blows its horn. The frequency of the horn as observed by the driver in train A is 504 Hz. The frequency of the horn of train B is (speed of sound = 330 ms)

Answer: (B)

Solution

m/s and gives Hz; 504 Hz

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Question ID VK-070125