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Question
On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because :
Options:
A .  Metals have higher thermal capacity than plastics
B .  Plastics have a lower density than metals
C .  Metals are good conductors of heat
D .  Plastics have a higher thermal conductivity than metals
Answer: Option C
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