When an engine passes near to a stationary observer then its apparent frequencies occurs in the ratio 5/3. if the velocity of sound is 340 m/s then speed of engine is
A source is moving towards a stationary observer, so that the apparent frequency increases by 50%. If velocity of sound is 330 m/s, then velocity of source is
The apparent frequency of the whistle of an engine changes in the ratio 9 : 5 as the engine passes the stationary observer. If the velocity of sound is 350 ms^(-1) , then the speed of the engine is
A train moving at 40 m/s, passes by a stationary observer, emitting a whistle of frequency 300 Hz. If the velocity of sound wave is 340 m/s, then the change in the apparent frequency of the sound, just before and after the train passes by the observer will be nearly
The apparent frequency of the whistle of an engine changes in the ratio 6:5 as the engine passes a stationary observer. If the velocity of sound is 330(m)/(s) , then the velocity of the engine is
The frequency of the whistle of an engine appears to drop to (2)/(3)rd of its actual value when it passes a stationary observer. Velocity of sound in air is 330 m/s then the speed of engine is
A locomotive engine approaches a railway station and whistes at a frequency of 400 Hz. A stationary observer on the platform observes a changes of 40 Hz. As the engine passed across him. If velocity of sound is 330 m/s. The speed of the engine is
The Pitch of the whistle of an engine appears to drop to 5/6 th of original value when it passes a stationary observer if the speed of sound in air is 350 m/s then the speed of engine is
An observer moving towards a stationary source observes that the apparent frequency is three times the actual frequency of the source. If the velocity of sound is V, the velocity of the observer would be-
The apparent frequency of the whistle of an engine changes in the ratio 13 : 12 as the engine passes a stationary observer. If the velocity of sound is 350 m/s. The velocity of engine is
