| ⇦ | 
| ⇨ |
A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m. The power of the source is
Options
(a) 20 W
(b) 25 W
(c) 40 W
(d) 50 W
Correct Answer:
20 W
Explanation:
Velocity, v = displacement / time = 6/3 = 2 m/s
.·. Power, P = Fv = 10 × 2 = 20 W
Related Questions:
- The mean free path of molecules of a gas,(radius ‘r’) is inversely proportional to
- If white light is used in Young’s double slit experiment
- A car of mass m is moving on a level circular track of radius R
- Two discs of same material and thickness have radii 0.2 m and 0.6 m.
- Which of the following is true for elastic potential energy density?
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