Fill in the blank
A longer rod expands ...........than a shorter rod on being heated to the same temperature.
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.
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.