The sirens of two fire engines have a frequency of 500HZ each. A man hears the sirens form the two engine, on approaching him with a speed of 70km/h and the other going away from him at a speed of 80km/h. What is difference in frequencies of two sound heard by the man? Take the speed of the sound to be 340m/s.
The sirens of two fire engines have a frequency of 500HZ each. A man hears the sirens form the two engine, on approaching him with a speed of 70km/h and the other going away from him at a speed of 80km/h. What is difference in frequencies of two sound heard by the man? Take the speed of the sound to be 340m/s.
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Transcribed Image Text:The sirens of two fire engines have a frequency of 500HZ each. A man hears the sirens
form the two engine, on approaching him with a speed of 70km/h and the other going away
from him at a speed of 80km/h. What is difference in frequencies of two sound heard by
the man? Take the speed of the sound to be 340m/s.
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