Physics WAEC

A car moving at 20m/s with its horn blowing (f = 1200Hz) is chasing another car going at 15m/s. What is the apparent frequency of the horn as heard by the driver being chased?

A. 1.22KHz
B. 2.40KHz
C. 8.12KHz
D. 1.22Hz

Correct Answer: Option A

A. 1.22KHz

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6 years ago

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