(C) The space between the two walls of a thermos bottle is evacuated to prevent heat transfer due to conduction and convection.However, heat transfer

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Assertion is true but Reason is false.

(C) The space between the two walls of a thermos bottle is evacuated to prevent heat transfer due to conduction and convection.However, heat transfer by radiation does not require a material medium and can occur through a vacuum.Therefore, the vacuum between the walls does not inhibit heat transfer by radiation.Thus, the Assertion is true, but the Reason is false.

Class 11 Physics 10-2.Heat Transfer Basic of Heat Transfer and Conduction

Easy

Assertion: $A$ thermos bottle consists of a double-walled glass vessel with the space between the two walls evacuated, so that the heat transfer between the contents of the bottle and the outside is minimized.
Reason: The vacuum between the two walls inhibits the heat transfer by the radiation mechanism.
Which of the following is correct?

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A
Assertion is true, Reason is true and Reason is the correct explanation for Assertion.
B
Assertion is true, Reason is true but Reason is not the correct explanation for Assertion.
C
Assertion is true but Reason is false.
D
Assertion is false but Reason is true.