JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Two rods A and B are of equal lengths. Their ends are kept between the same temperature and their area of cross-sections are

{A_1}

and

{A_2}

and thermal conductivities

{K_1}

and

{K_2}

. The rate of heat transmission in the two rods will be equal, if

View answer and explanation

Correct option: B

{K_1}{A_1} = {K_2}{A_2}

Option B (

{K_1}{A_1} = {K_2}{A_2}

) is correct because the rate of heat transmission is directly proportional to the thermal conductivity and area of cross-section.

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