The two ends of a spring are displaced along the length of the spring. All displacements have equal magnitudes. In which case or cases the tension or compression in the spring will have a maximum magnitude?
| (a) | The right end is displaced toward the right and the left end is toward the left |
| (b) | both ends are displaced toward the right |
| (c) | both ends are displaced toward the left |
| (d) | the right end is displaced toward the left and the left end is toward the right |
Choose the correct option from the given ones:
| 1. | (a) and (b) only |
| 2. | (b) and (c) only |
| 3. | (c) and (d) only |
| 4. | (a) and (d) only |