Question

When we say sound travels in a medium,Pick the correct answer.
A) The medium travels
B) The particles of the medium travel
C) The source travels
D) The disturbance travels

Answer 1

answer :- (D) the disturbance travels.

the disturbance is known as wave which propagates and need medium to travel from one point to another. in simple way for traveling of wave , it disturbs the neighbouring molecules with the help of before molecule.
in entire explanation we observed $\bf{disturbance}$ is the main factor.
so, answer should be (D)