The sound emitted from the siren of an ambulance has frequency of 1500 Hz. The speed of sound is 340`m//s`. Calculate the difference in frequencies heard by a stationary observer in the ambulance initially, travels towards and then away from the observer at a speed of 30`m//s`.

A source of sound has frequency 2000 Hz. If the speed of sound in air 340m//s , find the distance covered by sound when the source completes 400 vibrations.

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

An organ pipe of length 0.4 m is open at both ends . The speed of sound in air is 340 ms^-1 . The fundamental frequency is

A train has just completed a U-curve in a track which is a semicircle. The engine is at the forward end of the semi-circular part of the track while the last carriage is at the rear end of the semi-circular track. The driver blows a whistle of frequency 200 Hz. Velocity of sound is 340 m//s . Then the apparent frequency as observed by a passenger in the middle of a train when the speed of the train is 30 m//s is

A source of sound of frequency 750 Hz is placed inside water. The speed of sound in water is 1500 m//s and in air is 340 m//s . The frequency of sound recorded by an observer who is standing in air is

Solve the following example: A source of sound has frequency 1000Hz. If the speed of sound in air under certain conditions is 340 m/s, find the distance covered by sound when the source completes 100 vibrations.

A source of sound when moves towards a stationary observer, then frequency of the sound heard by listener is more than actual frequency because the

A sound wave has wavelength 0.87m in air and 0.88m in a gas. The speed of sound in air is 348m//s . Find the frequency of sound and the speed of sound in the gas.