AIIMS 2019 Physics Properties of Waves MCQ Question
Assertion: The change in air pressure effect the speed of sound.
Reason: The speed of sound in a gas is proportional to the square of pressure.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
The statement indicates that the ratio of pressure (p) to density (ρ) remains constant, which aligns with the principles of fluid dynamics, particularly in incompressible fluids where changes in pressure do not significantly affect density. This concept is exemplified in fluids like water (H₂O) under moderate pressure conditions, where the density remains relatively constant despite variations in pressure. Other options are not applicable as they do not provide relevant information or context to support the understanding of the relationship between pressure and density in fluids.
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