| ⇦ | 
| ⇨ |
If the error in the measurement of momentum of particle is (+100 % ), then the error in the measurement of kinetic energy is
Options
(a) 100 %
(b) 200 %
(c) 300 %
(d) 400 %
Correct Answer:
300 %
Explanation:
Error in measurement of momentum is + 100%
.·. p₁ = p, p₂ = 2p
KE₁ = p²/2m, KE₂ = (2p)²/2m
% in KE = [(KE₂ – KE₁) / KE₁] × 100 = [(4-1) / 1] × 100 = 300 %.
Related Questions: - The resistance of an ammeter is 13Ω and its scale is graduated for a current
- If ∆U and ∆W represent the increase in internal energy and work done by the system
- Two coherent monochromatic beams of intensities I and 4I respectively, are superposed.
- A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions
- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Physical World and Measurement
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The resistance of an ammeter is 13Ω and its scale is graduated for a current
- If ∆U and ∆W represent the increase in internal energy and work done by the system
- Two coherent monochromatic beams of intensities I and 4I respectively, are superposed.
- A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions
- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Physical World and Measurement (103)
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