Find the time period of a source of a sound wave whose frequency is 400 Hz.
What is the capacitance reactance of a 5mu F capacitor when it is part of a circuit whose frequency is (i) 50 Hz (ii) 10^(6) Hz ?
If the velocity of sound in air is 340 m/s, then calculate the wave length when frequency is 256 Hz.
A train sounds its whistle as it approaches and crosses a level crossing. An observer at the crossing measures a frequency of 219 Hz as the train approaches and a frequency of 184 Hz as it leaves. If the speed of sound is taken to be 340m//s , find the speed of the train and the frequency of its whistle
VGS PUBLICATION-BRILLIANT-SOUND-WORKED OUT EXAMPLES
