NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Waves and Sound
NEET · Physics · Waves and Sound
Assertion: Longitudinal waves are called pressure waves. Reason:...
Assertion: Longitudinal waves are called pressure waves.
Reason: Propagation of longitudinal waves through a medium involves changes in pressure.
Options
- AIf both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
- BIf both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
- CIf Assertion is true but Reason is false.
- DIf Assertion is false but Reason is true.
Correct answer
A. If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
Step-by-step solution
"Longitudinal waves are called pressure waves."
(\checkmark) True - because compressions and rarefactions cause local pressure variations.
Reason:
"Propagation of longitudinal waves through a medium involves changes in pressure."
(\checkmark) True - the wave consists of alternate high-pressure (compression) and low-pressure (rarefaction) regions.
And the Reason correctly explains the Assertion.