Question
A police car with a siren of frequency 8 kHz is moving with a uniform velocity of 36 km/hr towards a tall wall that reflects
A police car with a siren of frequency 8 kHz is moving with a uniform velocity of 36 km/hr towards a tall wall that 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
(a) 8.50 kHz
(b) 8.25 kHz
(c) 7.75 kHz
(d) 7.50 kHz
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Algebra and Trigonometry
Authors: Ron Larson
10th edition
9781337514255, 1337271179, 133751425X, 978-1337271172
