Two passenger trains moving with a speed of `108km//hour` cross each other. One of them blows a whistle whose frequency is `750Hz`. If sound speed is `330m//s`, then passengers sitting in the other train, after trains cross each other will hear sound whose frequency will be

Two trains, each moving with a velocity of 30 ms^-1 , cross each other. One of the trains gives a whistle whose frequency is 600 Hz. If the speed of sound is 330 ms^-1 , the apparent frequency for passengers sitting in the other train before crossing would be

A train is moving with speed 72 km/h towards a hill blows a whistle of frequency 1240Hz. the frequency of echo heard by driver is(speed of sound=330m/s)

A train is moving with speed 72 km/h towards a hill blows a whistle of frequency 1240Hz. the frequency of echo heard by driver is(speed of sound=330m/s)

Two trains are moving towards each other at speed of 144 km/hr and 54 km/hr relative to the ground. The second sounds a whistle of frequency 710 Hz, the frequency of this whistle as heard by a passenger in the first train after the trains have crossed each other is x xx 10^2Hz , what is value of x. (v = 340 m/s)

A passenger is sitting in a fast moving train. The engine of the train blows a whistle of frequency ‘n\ If the apparent frequency of sound heard by the passenger is n', then

A passenger is sitting in a fast moving train The engine of the train below a whistle of frequency 'n' .If the apparent frequency of sound heard by the passenger is 'n' then

A passenger is sitting in a fast moving train The engine of the train below a whistle of frequency 'n' .If the apparent frequency of sound heard by the passenger is 'n' then

Two train travelling in opposite directions at 126 km/hr each, cross other while one of them is whistling if the frequency of the node is 2.22 kHz find the apparent frequency as head by an observer in the other train : (a) Before the trains cross each other (b) After the trains have crossed each other (V_("sound") = 335 m//sec)