Heat and Thermal ExpansionHard

Question

Bars of two different metals are bolted together, as shown in figure. The distance  x does not change with temperature  if :-

Options

A.
B.
C.
D.

Solution

x = l′A - l′B = lA (1 + αAᐃT) - lB (1 + αBᐃT) lA - lB
⇒ lAαA = lBαB

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 metallic sphere having radius 0.08 m and mass m = 10 kg is heated to a temperature of 227oC and suspended inside a box...The temperature of a body rises by 44oC when a certain of heat is given t it. The same heat when supplied to 22 g of ice...Two identical beakers are filled with to the same level at 4oC. If one say A is heated while the other B is colled, then...Two substance A and B of equal mass m are heated by uniform rate of 6 cal s-1 similar conditions. A graph between temper...In a vertical U - tube containing a liquid, the two arms are maintained at different temperatures, t1and t2. The liquid ...