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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
- In India, electricity is supplied for domestic use at 200V. It is supplied at 110 V
- The 6563 Å line emitted by hydrogen atom in a star is found to be red shifted by 5Å
- An ideal gas is expanding such that PT²=constant. The coefficient of volume
- Two beams of light having intensities I and 4I interfere to produce a fringe pattern
- The decay constant of a radio isotope is λ. If A₁ and A₂ are its activities at time
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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