railway RRB JE (CBT I + CBT II) Mock Test 2024 Strength of Materials Simple Stress and Strain Stress and Strain
A steel rod of 2 cm2 area and 1 metre in length is subjected to a pull of 40,000 N. If Young’s modulus is 2 × 105 N/mm2 , the elongation of the rod will be
1
10 mm
2
100 mm
3
1 mm
4
0.1 mm