The velocity of the sound in vacuum is 344 `ms^(-1)`

If the velocity of sound in aluminium is 5100 ms^(-1) find out wavelength of sound wave having frequency 255 Hz in aluminium.

A whistle producing sound waves of frequencies 9500 Hz and above is approaching a stationary person with speed vms^(-1) . The velocity of sound in air is 300 ms^(-1) . If the person can hear frequencies upto a maximum of 10,000 Hz .The maximum value of v upto which he can hear whistle is

A car has two horns having a difference in frequency of 180 Hz. The car is approaching a stationary observer with a speed of 60 ms^(-1) . Calculate the difference in frequencies of the notes as heard by the observer, If velocity of sound in air is 330 ms^(-1) .

A siren emitting a sound of frequency 800 Hz moves away from an observer towards a cliff at a speed of 15 ms^(-1) Then, the frequency of sound that the observer hears in the echo reflected from the cliff is ....... (Take velocity of sound in air = 330 ms^(-1))

A source of sound S emitting waves of frequency 100 Hz and an observer 0 are located at some distance from each other. The source is moving with a speed of 19.4 ms^(-1) at an angle of 60^(@) with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer (velocity of sound in air 330 ms^(-1) ) is ......