A wall is moving with velocity u and a source of sound moves with velocity `(u)/(2)` in the same direction as shown in the figure. Assuming that the sound travels with velocity `10u`, the ratio of incident sound wavelength on the wall to the reflected sound wavelength by the wall is equal to

When the source moves with a velocity v, the ratio of wavelengths received by A and B will be (c = speed of Sound):

A wall is moving with constant velocity u towards a fixed source of sound of frequency f . The velocity of sound is v . The wavelength of the sound reflected by the wall is

The observer is moving with velocity 'v'_(0) towards the stationary source of sound and then after crossing moves away from the source with velocity 'v'_(0) . Assume that the medium through which the sound waves travel is at rest. If v is the velocity of sound and n is the frequency emitted by the source, then the difference between appearent frequencies heard by the observer is

If a ball strickes with a velocity u_(1) at the wall which itself is approaching it with a velocity u_(2) then find the velocity of the ball after collision with the wall.

If a ball strickes with a velocity u_(1) at the wall which itself is approaching it with a velocity u_(2) then find the velocity of the ball after collision with the wall.

The observer is moving with velocity 'v_0' towards the stationary source of sound and then after crossing moves away from the source with velocity ' v_0 '. Assume that the medium through which the sound waves travel is at rest, If 'v' is the velocity of sound and 'n' is the frequency emitted by the spurce then the difference between apparent frequencies heard by the observer is