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Question
Assertion (A): We cannot hear the sound of a bell ringing in a closed jar after most of the air is pumped out.
Reason (R): Sound requires a medium to travel.
Choose the correct statement:
Options
Both A and R are true, but R is not the correct explanation of A.
Both A and R are true, and R is the correct explanation of A.
A is true, but R is false.
A is false, but R is true.
MCQ
Assertion and Reasoning
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Solution
Both A and R are true, and R is the correct explanation of A.
Explanation:
The assertion is true because sound cannot be heard in a near vacuum, and this is correctly explained by the fact that sound needs a material medium to propagate.
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