wave_mechanics assertion_and_reason Question 6
Question: Assertion : Compression and rarefaction involve changes in density and pressure. Reason : When particles are compressed, density of medium increases and when they are rarefied, density of medium decreases.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: A
Solution:
A compression is a region of medium in which particles come closer i.e., distance between the particles becomes less than the normal distance between them.
Thus there is a temporary decrease in volume and a consequent increase in density of medium.
Similarly in rarefaction, particle get farther apart and a consequent decrease in density.
BETA
