One rod of copper and another identical rod of iron are heated to the same rise in temperature. Which rod will expand more? Give reason.
select the correct alternative
The increase in length of a metal rod depends on
- the initial length of the rod only
- the rise in temperature only
- the material of rod only
- all the above three factors.
Fill in the blank
A longer rod expands ...........than a shorter rod on being heated to the same temperature.