railway RRB JE (CBT I + CBT II) Mock Test 2024 Strength of Materials Simple Stress and Strain Stress-Strain Diagram
Two circular copper bars of equal lengths have diameter ratio 1 : 2. When each bar is subjected to the same tensile load, the corresponding ratio of elongations will be:
1
4 : 1
2
1 : 4
3
2 : 1
4
1 : 2