Four rods of silver,copper,brass,and wood are | vedclass

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(D) The rate of heat transfer through a rod depends on its thermal conductivity $(K)$.Silver,copper,and brass are metals with high thermal conductivit

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Wood

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(D) The rate of heat transfer through a rod depends on its thermal conductivity $(K)$.Silver,copper,and brass are metals with high thermal conductivity,meaning they conduct heat away from the paper rapidly,preventing the paper from reaching its ignition temperature quickly.Wood is an insulator with very low thermal conductivity.Because wood does not conduct heat away from the surface,the heat supplied to the paper remains localized at the point of contact.Therefore,the paper wrapped around the wooden rod will reach its ignition temperature first and burn.

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

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