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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
- The magnetic flux linked with a coil at any instant t is given by ?, find emf
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
- A uniform wire of resistance 9Ω is joined end-to-end to form a circle. Then
- Steam at 100⁰C is passed into 20 g of water at 10°C. When water acquires a temperature
- A body with mass 5 kg is acted upon a force F=(-3i+4j) N.If its initial velocity at
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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