A metal tube and a rod of same length same material and same outer diameter are given same amount of heat. Which will show less expansion and why ?

A metal tube & a rod of same distance same material & same outer diameter are given same amount of heat. Which will show less expansion & why ?

Two Brass rods of same length but with different diameters are heated by equal amounts of heat. The expansion is

Two metal rods of same length and same material conduct a given amount of heat in 8 seconds, when they are joined end to end. But when they are joined in parallel, the time taken to conduct the same amount of heat under same condition is

Do same amount of iron and copper at the same temperature hold same amount of heat ? Explain

A solid and a hollow cylinder of the same size and made of the same material are heated for the same change of temperature. Will the expansions be the same? Explain your answer.

Assertion : A solid and hollow sphere of same diameter and same material when heated through the same temperature will expand by the same amount. Reason : The change in volume us independent of the original mass but depends on original volume.

Assertion : A solid and hollow sphere of same diameter and same material when heated through the same temperature will expand by the same amount. Reason : The change in volume us independent of the original mass but depends on original volume.