If the velocity of sound in air is 340 m/s, then calculate the wave length when frequency is 256 Hz.

The driver of a car travelling with speed 30 m/ sec towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330 m/s, the frequency of reflected sound as heard by driver is

A tube of certain diameter and length 48 cm is open at both ends. Its fundamental frequency of resonance is found to be 320 Hz. The velocity of sound in air is 320 m/s. Estimate the diameter of the tube. One end of the tube is now closed. Calculate the fundamental resonance for the tube.

Stationary waves are setup in an air column. If the velocity of sound in air is 330ms^-1 and frequency is 165 Hz, the distance between the nodes is

A whistle producing sound waves of frequencies 9500 Hz and is approaching a stationary person with speed v ms^(-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 the whistle is