A car is approching a railway crossing at a speed of `72 kmph`. It sounds a horn, when it is `800 m` away, at `600 Hz`. If the velocity of sound in air is `330 ms^(-1)`. The apparent frequency as received by a man at rest near the railway track perpendicular to the road at a distance of `600 m` from the crossing the

A train approachign a railway crossing at a speed of 120 kmh^-1 sounds a short whistle at frequency 640 Hz when it is 300 m away from the crossing. The speed of sound in air is 340 ms^-1 . What will be the frequency heard by a person standing on a road perpendicular to the track through the crossing at a distance of 400 m from the crossing ?

A train approachign a railway crossing at a speed of 120 kmh^-1 sounds a short whistle at frequency 640 Hz when it is 300 m away from the crossing. The speed of sound in air is 340 ms^-1 . What will be the frequency heard by a person standing on a road perpendicular to the track through the crossing at a distance of 400 m from the crossing ?

A train approachign a railway crossing at a speed of 120 kmh^-1 sounds a short whistle at frequency 640 Hz when it is 300 m away from the crossing. The speed of sound in air is 340 ms^-1 . What will be the frequency heard by a person standing on a road perpendicular to the track through the crossing at a distance of 400 m from the crossing ?

A train approaching a railway crossing at a speed of 120 km/h sounds a whistle of frequency 576 Hz, when it is 288 m away from the crossing . The frequency heard by the observer standing on the road perpendicular to the track from the crossing at a distance of 384 m is (Speed of sound in air = 340 ms^(-1) )

The driver of a car travelling with speed 30ms^-1 towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330ms^-1 , the frequency of reflected sound as heard by driver is

The driver of a car travelling with speed 30ms^-1 towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330ms^-1 , the frequency of reflected sound as heard by driver is

A car approaching a crossing at a speed of 20 m/s sounds a horn of frequency 500Hz. when at 80m from the crossing, Speed of sound in air is 330 m/s. What freqnency is heard by an observer 60 m from the crossing on the straight road which crosses car road at right angles?

A car approaching a crossing C at a speed of 20 m//s sounds a horn of frequency 500 H_(Z) when 80 m from the crossing . Speed of sound in air is 330 m//s . What frequency is heard by an observer (at rest) 60m from the crossing on the straight road which crosses car road at right angles ?

A car approaching a crossing C at a speed of 20 m//s sounds a horn of frequency 500 H_(Z) when 80 m from the crossing . Speed of sound in air is 330 m//s . What frequency is heard by an observer (at rest) 60m from the crossing on the straight road which crosses car road at right angles ?