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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
- What are the unit of K = 1 / (4 π ?￢ﾂﾒ)
- The wave described by y = 0.25 sin (10 2πx – 2πt), where x and y are in meters
- A conveyor belt is moving at a constant speed of 2 m/s. A box is gently dropped on it
- The de-Broglie wavelength of an electron having 80 eV of energy is nearly
- In Moseley’s law √ν=a(z-b), the values of the screening constant for K-series
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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