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Which of the following rods of same material undergoes maximum elongation when subjected to a given force?
Options
(a) l=1 m, d=2 mm
(b) l=2 m, d=1 mm
(c) l=1 m, d=1 mm
(d) l=2 m, d=2 mm
Correct Answer:
l=2 m, d=1 mm
Explanation:
Δl(elongation) = Fl/YA
F is same. Young modulus is same.
.·. Δl α 1/r² .
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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 particle of masses m is thrown upwards from the surface of the earth, with a velocity u
- All components of the electromagnetic spectrum in vacuum have the same
- A thin and circular disc of mass M and radius R is rotating in a horizontal plane
- The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain
- A satellite is revolving around the earth with a kinetic energy E. The minimum
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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