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Q. Two rods of same metal but of 10 m and 20 m length are heated for the same rise in temperature. *-The 10 m rod will elongate and 20 m rod will contract.-The 10 m rod will elongate more.-The 20 m rod will elongate more.-Increase in length will be same in both the rods.

Answer»

ANSWER:

the 20 CM ROD will EXPAND more



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