Two loudspeaker M and N are located 20m apart and emit sound at frequencies 118Hz and 121Hz, res...

A sound of frequency 5 Hz .

A stationary source of sound is emitting sound of frequency 500Hz . Two observers A and B lying on the same line as the source, observe frequencies 480Hz and 530 Hz respectively. The velocity of A and B respectively are (in m//s ), speed of sound =300m//s .

An electronically driven loudspeaker is placed near the open end of a resonance column apparatus. The length of air column in the tube is 80 cm. The frequency of the loudspeaker can be varied between 20 Hz and 2 kHz. Find the frequencies at which the column will resonate. Speed of sound in air = 320 m s^-1

What is your observation when two source are emitting sound with frequency 499 Hz & 501 Hz

Two sirens situated one kilometer apart are producing sound of frequency 330 Hz. An observer starts moving from one siren to the other with a speed of 2m//s . If the speed of sound be 330 m//s , what will be the beat frequency heard by the observer?