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Question
A coin is dipped in molten wax kept in a glass tube. When we heat the upper part of the glass tube, the wax around the coin will not melt because:
A coin is dipped in molten wax kept in a glass tube. When we heat the upper part of the glass tube, the wax around the coin will not melt because:
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Solution
The correct option is D Wax and glass are bad conductors
Glass is a bad conductor of heat hence the heat from the upper part of the glass tube will not transfer easily to the lower part. Having said that, even wax is a bad conductor of heat and won't melt easily.
Glass is a bad conductor of heat hence the heat from the upper part of the glass tube will not transfer easily to the lower part. Having said that, even wax is a bad conductor of heat and won't melt easily.
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