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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 stone thrown into still water, creates a circular wave pattern moving radially
- A body of mass 3 kg is under a constant force which cause a displacement
- A photon of wavelength 300nm interacts with a stationary hydrogen atom in ground
- The angular speed of earth, so that the object on equator may appear weightless
- The half life of radioactive isotope ‘X’ is 50 years. It decays to
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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