Physics: Sound Wave MCQs

11. Question

sound waves having the following frequencies are audible to human beings

12. Question

A sound wave is represented by

y = a sin (1000πt- 3x). the distance between two points having a phase difference of 60° is 


13. Question

The equation of wave traveling along string is y=3 cos π(100t-x) in C.G.S. unit then wavelength is  

14. Question

A siren emitting a note of frequency n is fitted in a police van, travelling towards a stationary listener. What is the velocity of the van, if the frequency of the note heard by the listener is double the original frequency?

15. Question

In the longitudinal waves the direction of vibration in the medium of particle is