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

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Plastics have a higher thermal conductivity than metals

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Metals have higher thermal capacity than plastics

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Plastics have a lower density than metals

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Metals are good conductor of heat

1.	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
B.	Plastics have a lower density than metals
C.	Metals are good conductor of heat
D.	Plastics have a higher thermal conductivity than metals
Answer» D. Plastics have a higher thermal conductivity than metals

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

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