At a height of 10 m, one rod of iron (10kg) and another rod of aluminum (33.5kg) dropped from the same point will have same:
An iron rod and another of brass, both at 27∘C differ in length by 10−3m. The coefficient of linear expansion for iron is 1.1×10−5/∘C and for brass is 1.9×10−5/∘C. The temperature at which both these rods will have the same length is
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.