If a car's horn emits a sound at a frequency of 500 Hz and the car isapproaching a stationary observer at a speed of 20 m/s, what will be theobserved frequency if the speed of sound is 340 m/s ? a) 520 Hz b) 480 Hzc) 540 Hz d) 460 Hz

If a car's horn emits a sound at a frequency of 500 Hz and the car isapproaching a stationary observer at a speed of 20 m/s, what will be theobserved frequency if the speed of sound is 340 m/s ? a) 520 Hz b) 480 Hzc) 540 Hz d) 460 Hz

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter13: Mechanical Waves

Section: Chapter Questions

Problem 41P

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Question

If a car's horn emits a sound at a frequency of 500 Hz and the car is
approaching a stationary observer at a speed of 20 m/s, what will be the
observed frequency if the speed of sound is 340 m/s ? a) 520 Hz b) 480 Hz
c) 540 Hz d) 460 Hz

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