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प्रश्न
A wire fixed at the upper end stretches by length l by applying a force F. The work done in stretching is ______.
विकल्प
2Fl
Fl
`F/(2l)`
`(Fl)/2`
MCQ
रिक्त स्थान भरें
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उत्तर
A wire fixed at the upper end stretches by length l by applying a force F. The work done in stretching is `underlinebb((Fl)/2).`
Explanation:
Work done = `1/2 xx "Force" xx "Enlongation" = (Fl)/2`
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Work Done in Stretching a Wire
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