Heat and Thermal ExpansionHard

Question

The coefficient of linear expansion ′ α ′ of the material a rod of length l0 varies with absolute temperature as α = aT - bT2 where where a & b are constants.The linear expansion of the rod when heated from T1 to T2 = 2T1 is :-

Options

A.
B.
C.
D.None of these.

Solution

∵ dl = αl0dT ∴ ᐃl = dl = (aT - bT2) l0dT∵ dl = αl0dT ∴ ᐃl = dl = (aT - bT2) l0dT

Create a free account to view solution

View Solution Free
Topic: Heat and Thermal Expansion·Practice all Heat and Thermal Expansion questions

More Heat and Thermal Expansion Questions

A solid sphere of radius R and of bulk modulus K is immersed in a liquid contained in a cylindrical vessel. A piston of ...N(< 100) Molecules of a gas have velocities 1, 2, 3.........N , km/s respectively . Then :-...A refrigerator converts 100 g of water at 25oC into ice at - 10oC in one hour and 50 minutes. The quantity of heat remov...Figure shows the variation of the internal energy U with density ρ of one mole of an ideal monatomic gas for thermo...The pressure of one mole of on mole of an ideal gas varies according to the law P = P0 - aV2, where P0 and a are positiv...