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A body is under stress F and has Young’s modulus Y, then the energy stored per unit volume equals to
Options
(a) F²/2Y
(b) Y/2F²
(c) 2Y/F²
(d) 2F²/Y
Correct Answer:
F²/2Y
Explanation:
Energy stored per unit volume,
u = (1/2) x stress x strain
= (1/2) x stress x [stress/Young’s modulus]
( ·.· Young’s modulus = stress/strain)
= (1/2) x F x (F/Y) = F²/2Y.
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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
- Two pendulums A and B are oscillating simultaneously with time period
- The interferance pattern is obtained with two coherent light sources of intensity
- In common base mode of a transistor, the collector current is 5.488 mA
- A body revolved around the sun 27 times faster than the earth. What is the ratio
- When the wavelength of sound changes from 1 m to 1.01 m,
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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