TS EAMCET 14-Sep-2020 Shift 1 Solved Paper

Section: Physics

Question : 97 of 160

Marks: +1, -0

Assertion (A): 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 outside is minimised.
Reason(R) : The vaccum between the two walls inhibits the heat transfer by radiation mechanism.
The correct option among the following is

(A) is true, (R) is true and (R) is the correct explanation for (A)
(A) is true, (R) is true but (R) is not the correct explanation for (A)
(A) is true but (R) is false
(A) is false but (R) is true

Validate

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