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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
- A body is thrown vertically upward in air when air resistance is taken into account
- Energy stored in the coil of a self inductance 40 mH carrying a steady current of 2A
- A bullet is shot from a riffle. As a result the rifle recoils.The kinetic energy of riffle
- Light of frequency 8×10¹⁵ Hz is incident on a substance of photoelectric work
- A particle is moving with a uniform velocity along a straight line path
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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