First slide

Thermal expansion

Question

A U-tube contains mercury with one limb at 0°C and the other at 100°C. The heights of the mercury columns are 60 cm at 0°C and 62 cm at 100°C. The coefficient of volume expansion of mercury per °C is :

Easy

A

2/100
B

2/60
C

2/62
D

3.33 x 10^-4

Solution

$V = V_{0} (1 + γ ∆ T) Al = {Al}_{o} (1 + γ ∆ T) \Rightarrow 62 = 60 [1 + γ (100)] \Rightarrow γ = \frac{2}{60 (100)} = 3.33 \times 10^{- 4} / {}^{o}C$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App