NEETPhysicsWaves and Sound
Assertion : Transverse mechanical wave does not travel in air. Reason : Air has only bulk modulus of elasticity.
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
Transverse waves need shear modulus, which air lacks (thereas only bulk modulus), Hence transverse waves cannot travel in air. Both Assertion and Reason are true, and Reason correctly explains Assertion.