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Question

On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because

A
metals have higher thermal capacity than plastics
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B
plastics have a lower density than metals
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C
metals are good conductor of heat
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D
plastics have a higher thermal conductivity than metals
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Solution

The correct option is C metals are good conductor of heat
On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC because metals are good conductor of heat, so they could absorb and release heat in a better way than insulators.

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