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प्रश्न
Assertion: The sound which we hear again is called Echo.
Reason: The sensation of sound (Echo) persists in our brain for about 1 s.
विकल्प
If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
If both assertion and reason are true but the reason is not the correct explanation of the assertion.
If the assertion is true but the reason is false.
If the assertion is false but the reason is true.
MCQ
उत्तर
If the assertion is true but the reason is false.
Reason: The sensation of sound persists in our brain for about 0 – 1 s.
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