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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
- An ideal gas is expanding such that PT²=constant. The coefficient of volume
- A 36 Ω galvanometer is shunted by resistance of 4 Ω. The percentage of the total current
- A total charge of 5µC is distributed uniformly on the surface of the thin walled
- The friction of the air causes a vertical retardation equal to 10%
- The total kinetic energy of a body of mass 10 kg and radius 0.5 m moving with a velocity
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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