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Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 17 - Wave Motion > A police car with a siren of frequency 8kHz is moving with uniform velocity 36km/hr towards a tall building which reflects the sound waves. The speed of sound in air is 320m/s. The frequency of the siren heard by the car driver is

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

A car moving with velocity 50 m s towards a wall sounds a horn of frequency of 1.2 kHz. The velocity of sound is 350 m/s the apparent frequency of the echo heard by the driver is