Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-diagram based-Hard-Class 11
Consider a diagram illustrating the propagation of sound waves in air, with regions of compression and rarefaction labeled. Which of the following best describes what happens to the density in a region undergoing rarefaction?
A
The density decreases as the molecules move apart.
B
The density increases as the molecules move closer together.
C
The density remains constant as the wave passes through.
D
The density fluctuates randomly with no pattern.
Correct Answer
Option A
Detailed Explanation
During rarefaction, the air molecules move apart, leading to a decrease in density as described in the NCERT context about sound wave propagation.
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