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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 length of second pendulum is 1 m on earth. If mass and diameter
- An object is 8 cm high. It is desired to form a real image 4 cm high at 60 cm from
- The excess pressure inside one soap bubble is three times that inside a second soap bubble
- A sample of HCl gas is placed in an electric field of 5 x 10⁴ N/C
- In a ionised gas,the mobile charge carriers are
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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