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A metal bar of length L and area of cross-section A is clamped between two rigid supports. For the material of the rod, Young’s modulus is Y and coefficient of linear expansion is α. If the temperature of the rod is increased by ∆t⁰C, the force exerted by the rod on the supports is
Options
(a) YAL.∆t
(b) Yaα.∆t
(c) Ylα.∆t/A
(d) YαAL.∆t
Correct Answer:
Yaα.∆t
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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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 change of 0.04 V takes place between the base and the emitter when an input
- A block is moving up an inclined plane of inclination 60° with velocity of 20 ms⁻¹
- The current in a conductor varies with time t as I=2t+3t² Where I is in amperes
- The electric field at a distance 3R / 2 from the centre of a charged conducting
- Three identical spherical shells, each of mass m and radius r are placed
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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