1.

Assertion: Air at some distance above the fire is hotter than the same distance side wise. Reason: Air surrounding the fire carries heat upward due to conventional current.

Answer»

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

Solution :QUANTITY of heat by hot air due to hot conventional CURRENT upward is larger by heat side wise due to radiation


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