MCQOPTIONS
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MCQOPTIONS
| 1. |
K is the force constant of a spring. The work done in increasing its extension from \[{{l}_{1}}\] to \[{{l}_{2}}\] will be [MP PET 1995; MP PMT 1996] |
| A. | \[K({{l}_{2}}-{{l}_{1}})\] |
| B. | \[\frac{K}{2}({{l}_{2}}+{{l}_{1}})\] |
| C. | \[K(l_{2}^{2}-l_{1}^{2})\] |
| D. | \[\frac{K}{2}(l_{2}^{2}-l_{1}^{2})\] |
| Answer» E. | |