Question

Two copper wires of same length and different daiameter are heated from 0 to 100 degree celcious the change in length is linear.justify​

Answer 1

Answer:

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Explanation:

HHeat given Q=mSΔT

The mass of thin rod is less than thick rod, so the rise in the temperature will be higher for thin rod.  

ΔL=LαΔT.  

So the rise will be more for higher ΔT. Thin rod will expand more.

Answer 2

Answer:

Heat given Q=mSΔT

Heat given Q=mSΔTThe mass of thin rod is less than thick rod, so the rise in the temperature will be higher for thin rod.

Heat given Q=mSΔTThe mass of thin rod is less than thick rod, so the rise in the temperature will be higher for thin rod. ΔL=LαΔT.

Heat given Q=mSΔTThe mass of thin rod is less than thick rod, so the rise in the temperature will be higher for thin rod. ΔL=LαΔT. So the rise will be more for higher ΔT. Thin rod will expand more.