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[" A two are the fire the fires have a f...

[" A two are the fire the fires have a frequency of "600Hz" each.A man hears the sirens from the "],[" two engines,one approaching him with a speed of "36kmh^(-1)" and the other going away from him "],[" at a speed of "54kmh^(-1)" .What is the difference in frequency of two sirens heard by the man? "],[" Take the speed of sound to be "340ms^(-1)" ,"4y" y "4." ."]

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The sirens of two fire engines have a frequency of 600 Hz each . A man hears the sirens from two engines, one approaching him with a velocity of 36km//h and the other going away from him at a speed of 54km//h . What is the difference in frequencies of sound heard ? Take velocity of sound in air =340m//s .

The sirens of two ambulances have a frequency of 500 Hz each. An observer hears the sirem from the two engines, one approaching him with a speed of 18 km/hr and other going away from him at a speed of 36 km/hr. Determine the difference in frequency of two sirens heard by the observer. Take, speed of sound in air = 340 m/s.

A train is approaching towards a platform with a speed of 10 m s^(-1) while blowing a whistle of frequency 340 Hz. What is the frequency of whistle heard by a stationary observer on the platform ? Given speed of sound = 340 ms^(-1) .

A train is approaching towards a platform with a speed of 10 ms^(-1) , while blowing a whistle of frequency 340 Hz. What is the frequency of whistle heard by a stationary observer on the platform ? (given, speed of sound =340 ms^(-1) )

A train producing a siren with a frequency of 1500 Hz approaches a stationary observr with a speed of 72 kmph. What is apparent frequency of sound heard by him when it crossing him ?( Given velocity of sound v = 340ms^(-1) )