In sound waves , a displacement node is a pressure antinode and the vice versa . Explain why ?

What are pressure node and pressure antinode ?

During which part of the simple harmonic motion velocity is positive but the displacement is negative , and vice versa ?

A sound wave in a certain fluid medium is reflected at an obstacle to form a standing wave. The distance between two successive nodes is 3.75 cm. If the velocity of sound is 500 m//s . find the frequency.

A sound wave in a certain fluid medium is reflected at an obstacle to form a standing wave. The distance between two successive nodes is 3.75 cm .If velocity of sound is 1500 m/s , find the frequency.

Fill in the blanks : The region in a sound wave, with higher pressure and density is called …………. And that with low pressure and density is called ……….. .

Explain the formation of stationary waves by analytical method. What are nodes and antinodes ? Show that the distance between two successive nodes or antinodes is lambda /2 .

A source of sound placed at the open end of a resonance column sends an acoustic wave of pressure amplitude P_(0) inside the tube. If the atmospheric pressure is P_(A) , then the ratio of maximum and minimum pressure at the closed end of the tube will be

For sound waves, the Doppler formula for frequency shift differs slightly between the two situations: (i) source at rest observer moving, and (ii)source moving observer at rest.The exact Doppler formulas for the case of light waves in vacuum are, however,strictly identical for these situations.Explain why this should be so.Would you expect the formulas to be strictly identical for the two situations in case of light travelling in a medium?

Stationary waves of frequency 300 Hz are formed in a medium in which the velocity of sound is 1200 metre / sec . The distance between a node and the neighbouring antinode is