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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
- 540 g of ice at 0° C is mixed with 540 g of water at 80° C. The final temperature
- The control rods used in a nuclear reactor can be made up of
- The wavelength of the short radio waves, microwaves, ultraviolet waves are λ₁,λ₂ and λ₃
- A filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance
- During negative β-decay
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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