[metals are good conductor...] On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much col

For Competitive Exams

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

metals have higher thermal capacity than plastics

plastics have a lower density than metals

metals are good conductor of heat

plastics have a higher thermal conductivity than metals

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