The wavelength of a particle is 99 cm and that of other is 100 cm. Speed of sound is 396 m/s. The number of beats heard is

Two factories are sounding their sirens at 800 Hz. A man goes from one factory to the other at a speed of 2 m/s. The velocity of sound is 320 m/s. The number of beats heard by the person is 1 s will be

Two factories are sounding their sirens at 800 Hz. A man goes from one factory to the other at a speed of 2 m/s. The velocity of sound is 320 m/s. The number of beats heard by the person is 1 s will be

The minimum wavelength of sound that is audible to a person is (speed of sound is 340 m/s)

a bus is moving with a velocity 4 m/s towards a wall, the driver sounds a horn of frequency 173 Hz . if the speed of sound in air is 350 m/s. the number of beat heard per second by a passanger on the bus will be

A car is moving with a velocity of 5 m//s towards huge wall. The driver sounds a horn of frequency 165 Hz . If the speed of sound in air is 335 m//s , the number of beats heard per second by the driver is

a bus is moving with a velocity 4 m/s towards a wall, the driver sounds a horn of frequency 173 Hz . if the speed of sound in air is 350 m/s. the number of beat heard per second by a passanger on the bus will be

A bus is moving with a velocity of 5 ms^(-1) towards a huge wall. The drive sounds a horn of frequency 165Hz. If the speed of sound in air is 335 m//s, the number of beats heard per second by a passenger on the bus will be