A body is under stress F and has Young’s modulus Y, then the energy

A Body Is Under Stress F And Has Youngs Modulus Physics Question

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.

Related Questions:

  1. A body revolved around the sun 27 times faster than the earth. What is the ratio
  2. The radius of a nucleus of mass number A is directly proportional to
  3. Efficiency of a Carnot engine is 50% when temperature of sink is 500K. In order
  4. What is the energy of photon whose wavelength is 6840 Å?
  5. A body of mass 3 kg acted upon by a constant force is displaced by S meter

Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*