Question

Assertion: sound is a mechanical wave
Reason: sound requires a medium for propagation
Choose the correct option-
a) both a and r are true and r is the correct explanation of a
b) both a and r are true but r is not the correct explanation of a
c) a is true but r is false
d) a is false but r is true
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Answer 1

Answer:

✅Option a is correct

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Answer 2

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Both assertion and reason are true and reason is the correct explanation of the assertion.

The waves which require a medium to travel are called mechanical waves . For example sound waves.

While the waves which do not require any medium to travel are called electromagnetic waves.