Question

The pressure variations in the propagation of sound
waves are
(1) Isobaric
(2) Isochoric
(3) Adiabatic
(4) Isothermal​

Answer 1

Answer:

adiabatic is the answer for this question

Answer 2

Answer:

Pressure is related to the number of particles of a medium in a given volume. More density of the particles in the medium gives more pressure and vice versa. Thus, propagation of sound can be visualised as propagation of density variations or pressure variations in the medium.