railway RRB JE (CBT I + CBT II) Mock Test 2024 Strength of Materials Simple Stress and Strain Thermal Stress and Strain
A steel bar (E = 200E = 200, α = 12 × 10 − 6/°C) expands by 0.3 mm due to a temperature increase. If the original length of the bar was 15 cm, what was the temperature rise?
1
166.6°C
2
100°C
3
180°C
4
120.6°C