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Question
On a cold morning, a metal surface in touching is felt colder than a wooden surface, because the metal has:
On a cold morning, a metal surface in touching is felt colder than a wooden surface, because the metal has:
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Solution
The correct option is B high thermal conductivity
Metal appears cool on touching because heat flows from body (at higher temperature) to iron (at lower temperature). This can happen only when metal conducts heat. Wooden surface does not feel cool as it is non-conductor of heat.
Metal appears cool on touching because heat flows from body (at higher temperature) to iron (at lower temperature). This can happen only when metal conducts heat. Wooden surface does not feel cool as it is non-conductor of heat.
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