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39. Multiple choice question XXXIX

1. When sound waves are propagated through a medium, the physical quantity/ quantities transmitted is/are____________.

Matter only
Energy only
Energy and matter only
Energy, momentum and matter

2. Assertion: Longitudinal waves are called pressure waves.

Reason: Propagation of longitudinal waves through a medium involves changes in pressure in the medium.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Assertion is correct but Reason is incorrect
Assertion is incorrect but Reason is correct

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