| ⇦ | 
| ⇨ |
A spring when stretched by 2mm containing energy 4 J. If it is stretched by 10 mm, its potential energy becomes equal to
Options
(a) 4 J
(b) 54 J
(c) 415 J
(d) None of these
Correct Answer:
None of these
Explanation:
E₁ = 1/2 Kx₁², E₂ = 1/2 Kx₂²
E₂ / E₁ = x₂² / x₁² = (10/2)² =25
E₂ = 25 E₁
But E₁ = 4 J
E₂ = 100 J
This alternative is not given. Hence answer is ‘none’
Related Questions: - The fluctuation in the input voltage of 200 V to a domestic circuit is +10V
- A ship of mass 3 x 10⁷ kg initially at rest is pulled by a force of 5 x 10⁴ N through
- Consider two concentric spherical metal shells of radii r₁ and r₂( r₂>r₁). If the outer
- Two metal spheres of radii 0.01m and 0.02m are given a charge of 15mC and 45mC
- A bar magnet of moment M and pole strength m is cut into parts of equal lengths.
Topics: Work Energy and Power
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The fluctuation in the input voltage of 200 V to a domestic circuit is +10V
- A ship of mass 3 x 10⁷ kg initially at rest is pulled by a force of 5 x 10⁴ N through
- Consider two concentric spherical metal shells of radii r₁ and r₂( r₂>r₁). If the outer
- Two metal spheres of radii 0.01m and 0.02m are given a charge of 15mC and 45mC
- A bar magnet of moment M and pole strength m is cut into parts of equal lengths.
Topics: Work Energy and Power (94)
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.
Share this page with your friends
Leave a Reply