First slide

Thermal expansion

Question

A metre scale made of steel is calibrated at 20°C to give correct reading. Find the distance between 50 cm mark and 51 cm mark if the scale is used at 10°C. Coefficient of linear expansion of steel is 1.1 × 10^–5/°C

Moderate

A

1.00011 cm
B

1.0011 cm
C

1.011 cm
D

1.000011 cm

Solution

$l_{c} = l_{m} (1 + (α_{S} - α_{b}) (t_{2} - t_{1}))$

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