1.

Assertion : Sound wave cannot propagate through vacuum but light can. Reason : Sound wave cannot be polarised but light can.

Answer»

Both ASSERTION and REASON are true and the reason is the correct EXPLANATION of the assertion.
Both assertion and reason are true but the reason is not the correct explanation of the assertion
Assertion is true but the reason is false.
Both assertion and reason are false.

Solution :Explanation: Sound WAVES, being mechanical waves, cannot TRAVEL through a vaccum. Lightwaves, electromagnetic waves, can travel through a vaccum.


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