A source and an observer approach each other with same velocity 50 m/s . If the apparent frequency is `435 sec^( –1)`, then the real frequency is

A source and an observer approach each other with same velocity 50 m/s. If the apparent frequency is 434 Hz, then the real frequency is (Given velocity of sound = 332 m/s)

What will be the source velocity to make the apparent frequency be equal to the half of the real frequeny?

An observer and source are approaching one another with a relative velocity of 50 m/s. If the true frequency of the source is 1000 Hz, determine the observed frequency when (i) Observer is stationary (ii) Source is stationary

A source of sound and listener are approaching each other with a speed of 40 m / s . The apparent frequency of note produced by the source is 400 cps . Then, its true frequency (in cps ) is (velocity of sound in air = 360 m / s )

If a source of sound of frequency upsilon and a listener approach each other with a velocity equal to (1//20) of velocity of sound, the apparent frequency heard by the listener is

A source of sound and a listener are approaching each other with a speed of 40ms^(-1) The apparent frequency of a note produced by the source is 400 Hz. Then its true frequency is (velocity of sound in air = 360 ms^(-1) )

A source of sound is moving away from an observer at rest with a velocity of 50 m s^(-1) . If the frequency of sound is 200 Hz , find the apparent frequency observed by the observer. (Take velocity of sound = 300 m s^(-1))

With what velocity should an observer approach a stationary shound source so that the apparent frequency of shound should appear double the actual frequency ? (v is velocity of shound).

The speed of sound in air at a given temperature is 350 m/ s. An engine blows whistle at a frequency of 1200 cps. It is approaching the observer with velocity 50 m/s. The apparent frequency in cps heard by the observer will be

A source having frequency of 240 Hz is moving towards an observer with a speed of 20 m/sec. When the observer is moving towards the source with a velocity of 20 m/sec, then apparent frequency heard by the observer, if velocity is 330 m/sec will be