Four identical boxes, each made of wood, plastic, aluminium, and clay, are placed in an open field under plenty of sunlight. Which of these four boxes would be the hottest, after an hour?

Wood

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Plastic

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Aluminium

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Clay

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Solution

The correct option is C Aluminium
A substance that can absorb or give away more heat in a less amount of time, is a good conductor of heat. Wood, plastic, and clay are bad conductors of heat, and hence, they do not become very hot, when left in the sunlight. But, aluminium is a metal, and is an excellent conductor of heat. So, after an hour, the aluminium box would feel the hottest among the four.

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