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Thermal Resistance

Four rods of ...

Question

Four rods of silver, copper, brass and wood are of same shape. They are heated together after wrapping a paper on it, the paper will burn first on

A

Silver

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B

Copper

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C

Brass

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D

Wood

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Solution

The correct option is D Wood
In conducting rod given heat transmits so burning temperature does not reach soon. In wooden rod heat doesn’t conduct.

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Q. Four rods of silver, copper, brass and wood are of same shape. They are heated together after wrapping a paper on it, the paper will burn first on

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