Question

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 1

Answer:

the 20 cm rod will expand more