Question

Two uniform brass rods a and b of length l and 2l and radii 2r and r respectively are heated to the same temperature. The ratio of increase in the volume of a to that of b is

Answer 1

volume = mass/density

Answer 2

Answer:

2:1

Explanation:

Va = π(2r)^2L

Vb =π(r)^2(2L)

Va:Vb=2:1