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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 maximum and minimum intensities of two sources is 4:1. The ratio of amplitude is
- Weight of a body of mass m decreases by 1% when it is raised to height h
- A battery of e.m.f. E and internal resistance r is connected to an external resistance
- A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
- A solid sphere, a hollow sphere and a ring are released from top of an inclined
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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