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MHT CET Physics question

PhysicsWavesMHT CET

A police car with a siren of frequency 8 kHz is moving with uniform velocity 36 km/hr towards a tall building which reflects the sound waves. The speed of sound in air is 320 m/s. The frequency of the siren heard by the car driver is

Answer: (A)

Solution

With m/s, the reflected sound has kHz kHz; 8.25 kHz would need a

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Question ID VK-070166