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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER
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The ends of 2 different materials with their thermal conductivities, radii of cross section and length all in the ratio of maintained at temperature difference. If the rate of the flow of heat in the longer rod is 4 cal, that in the shorter rod in cal will be
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Correct option: A
1
Option A (1) is correct because the rate of heat flow is proportional to K*A/L, and the ratios of K, A, and L are given, allowing for calculation of the heat flow ratio.
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