| ⇦ | 
| ⇨ |
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: - A cell of emf E and internal resistance r supplies current for the same time
- A body is moving in a vertical circle. The string must remain taut at the highest point
- The net electric force on a charge of +3μC at the mid-point on the line joining two
- A thin circular ring of mass M and radius R rotates about an axis through its centre
- A glass flask weighing 390 g having internal volume 500 cc just floats
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
- A cell of emf E and internal resistance r supplies current for the same time
- A body is moving in a vertical circle. The string must remain taut at the highest point
- The net electric force on a charge of +3μC at the mid-point on the line joining two
- A thin circular ring of mass M and radius R rotates about an axis through its centre
- A glass flask weighing 390 g having internal volume 500 cc just floats
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