| ⇦ | 
| ⇨ |
A satellite is revolving around the earth with a kinetic energy E. The minimum addition of kinetic energy needed to make it escape from its orbit is
Options
(a) 2E
(b) 2/E
(c) E/2
(d) E
Correct Answer:
E
Explanation:
The potential energy of a satellite is negative and twice its kinetic energy. If it has to escape, it has to be given an additional energy to nullify the energy due to attraction.
E is the energy to be given so that the satellite can escape.
Related Questions: - An electric bulb has a rated power of 50W at 100 V. if it used on an a.c. source
- Light emitted during the de excitation of electron from n=3 to n=2, when incident
- An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min
- A mass m moves in a circle on a smooth horizontal plane with velocity v₀
- The depth at which the effective value of acceleration due to gravity is g/4
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An electric bulb has a rated power of 50W at 100 V. if it used on an a.c. source
- Light emitted during the de excitation of electron from n=3 to n=2, when incident
- An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min
- A mass m moves in a circle on a smooth horizontal plane with velocity v₀
- The depth at which the effective value of acceleration due to gravity is g/4
Topics: Gravitation (63)
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