If an observer is moving with respect to a stationary electron, then he observes

An observer is moving towards the stationary source of sound, then

If an observer is moving with uniform velocity v to wards a stationary source of frequency n, and if the velocity of sound in the medium is V, then the apparent change in the frequency of the sound, heard by the observer, is -

An observer A is moving directly towards a stationary sound source while another observer B is moving away from the source with the same velocity. Which of the following statements are correct?

An observer A is moving directly towards a stationary sound source while another observer B is moving away from the source with the same velocity. Which of the following statements are correct?

With what velocity an observer sould move relative to a stationary source so that he hears a sound of double the frequency of souce?

Consider two observers moving with respect to each other at a speed v along a straight line. They observe a block of mass m moving a distance l on a rough surface. The following quantities will be same as observed by the two observers

Consider two observers moving with respect to each other at a speed v along·a straight line. They observe a block of mass m moving a distance 1 on a rough surface. The following quantities will be same as observed by the observers

Consider two observers moving with respect to each other at a speed v along a straight line. They observe a block of mass m moving a distance 1 on a rough surface. The following quantities will be same as observed by the two observers

Consider two observers moving with respect to each other at a speed v along·a straight line. They observe a block of mass m moving a distance 1 on a rough surface. The following quantities will be same as observed by the observers

When an observer moves towards a stationary source, then the apparent pitch will