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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 radius of germanium nuclide is measured to be twice the radius of ₄⁹Be.
- For a normal eye, the cornea of eye provides a converging power 40 D and the least
- Volume of gas becomes four times if temperature becomes
- An ideal coil of 10 H is connected in series with a resistance of 5Ω and a battery
- A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s
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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