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Chemistry CBSE Live product
Class 7
The World of Metals and Non-metals
Conductivity of materials
7.
Conduction of heat in materials
Question:
2
m.
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the correct answer:
Testing: For conduction of heat
What happens to the pin attached to the wax towards the free end of the wire after some time?
Due to the transfer of heat, the wax melts and pin falls
It remain undistrubed
There is no heat transfer, the wax does not melt
Pin starts vibtrating
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