A table is revolving on its axis at `5` revolutions per second. A sound source of frequency `1000 Hz `is fixed on the table at `70 cm` from the axis. The minimum frequency heard by a listener standing at a distance from the table will be (speed of sound `=352m//s`).

A car blowing a horn of frequency 350 Hz is moving normally towards a wall a speed of 5 m/s The beat frequency heard by a person standing between the car and wall is (speed of sound in air =350 m/s )

A car blowing a horn of frequency 350 Hz is moving normally towards a wall a speed of 5 m/s The beat frequency heard by a person standing between the car and wall is (speed of sound in air =350 m/s )

A car blowing a horn of frequency 350 Hz is moving normally towards a wall a speed of 5 m/s The beat frequency heard by a person standing between the car and wall is (speed of sound in air =350 m/s )

A table makes 5 rev/sec. A force of frequency 1000 Hz is at a distance of 0.7 m form the axis of rotation. The velocity of sound is 352 m/s. A man is standing at a little distance from the table. The maximum frequency noted by the man is

A car is travelling with a velocity of 40 m//s towards a source of sound of frequency 1000 Hz. If sound velocity is 330 m//s , then apparent frequency heard by the observer (in Hz) is

A source of frequency 150 Hz is moving in the direction of a person with a velocity of 110 m / s . The frequency heard by the person will be (speed of sound in medium = 330 m / s )

A disc of radius R is rotating uniformly with angular frequency . A source of sound is fixed to the rim of the disc. The ratio of maximum to minimum frequency heard by a stationary observer, far away from the disc and in the plane of the disc is: (v = speed of sound)