First slide

Thermal expansion

Question

When the temperature of a body increases from t to t + $∆$ t, its moment of inertia increases from I to I + $∆$ l. The coefficient of linear expansion of the body is α. The ratio $∆$ I/I is

Moderate

A

$∆$ t/t
B

2 $∆$ t/t
C

α $∆$ t
D

2α $∆$ t

Solution

$from I = {MR}^{2}, \frac{Δl}{I} = 2 \times \frac{ΔR}{R}, \frac{ΔI}{I} = 2 α Δ T$

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