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If a spring of spring constant k stretched by a length x under tension T, the energy stored is
Options
(a) 2k/T²
(b) 2T²/k
(c) T²/2k
(d) 2T/k²
Correct Answer:
T²/2k
Explanation:
Energy stored in the spring, U = (1/2).kx²
Since T = kx, .·. U = (1/2) k (T/k)² = T²/2k.
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Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A string is stretched between fixed points seperated by 75 cm. It is observed
- A particle is moving with a uniform velocity along a straight line path
- The potential difference applied to an X-ray tube is 5 kV and the current through it
- To draw the maximum current from a combination of cells, how should be the cells
- If X=3YZ², find dimensions of Y if X and Z are the dimensions of capacity
Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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