Q141 / 160 · AP EAMCET 2023 (19 May Shift 1) · Physics

During the propagation of a longitudinal wave, in the region of compressions and rarefactions

Correct answer
A
density varies
B
density remains constant
C
there is heat transfer
D
Boyle's law is obeyed

Solution

When a longitudinal wave propagates through solid liquid or gas then the particles of medium start oscillating about there mean position up and down in the same direction in which the wave travels. At any instant there are point in space where density is height called compression and the point where density is lowest called rare faction.

Hence, the correct answer is option: 'A'.

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