| ⇦ | 
| ⇨ |
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: - Two point white dots are 1 mm apart on a black paper.
- The velocity of a particle at an instant is 10 ms⁻¹.After 3 s its velocity will become
- The mean free path of electrons in a metal is 4 x 10⁻⁸ m. The electric field
- If the minimum energy of photons needed to produce photoelectrons is 3 eV,
- Watt hour mter measures
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
- Two point white dots are 1 mm apart on a black paper.
- The velocity of a particle at an instant is 10 ms⁻¹.After 3 s its velocity will become
- The mean free path of electrons in a metal is 4 x 10⁻⁸ m. The electric field
- If the minimum energy of photons needed to produce photoelectrons is 3 eV,
- Watt hour mter measures
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