Question

- Two rods of same material and length have their radii in the ratio 2 : 1. When same amount of heat is supplied to heat the rods,
the ratio of their expansions is? ​

Answer 1

Hey Dear,

◆ Answer -

∆l1 : ∆l2 = 1 : 1

● Explaination -

# Given -

r1/r2 = 2/1

# Solution -

Expansion of metal rod due to heating is calculated by -

∆l = l.α.∆T

Length of rod, coefficient of linear expansion and heating temperature is same for both rods.

Expansion of rods is independent of their cross-sectional areas. Hence, ratio of their expansions is

∆l1 : ∆l2 = 1 : 1.

Thanks dear...

Answer 2

Answer:1:4

Explanation: