| ⇦ | 
| ⇨ |
The radii of circular orbits of two satellites A and B of the earth, are 4R and R respectively. If the speed of satellite A is 3 V, then the speed of satellite B will be
Options
(a) 3 V / 4
(b) 6 V
(c) 12 V
(d) 3 V / 2
Correct Answer:
6 V
Explanation:
Orbital velocity of a satellite in a circular orbit of radius a is given by
v = √(GM / a) ⇒ v α √(1/a) ⇒ v₂ / v₁ = √(a₁ / a₂)
v₂ = v₁ √(4R / R) = 2 v₁ = 6 V
Related Questions: - If c is the velocity of light in free space, the time taken by light to travel
- Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series
- A polarised light of intensity I₀ is passed through another polariser whose pass axis
- A short linear object of length L lies on the axis of a spherical mirror of focal
- A rod lies along the X-axis with one end at the origin and the other at x→∞. It carries
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If c is the velocity of light in free space, the time taken by light to travel
- Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series
- A polarised light of intensity I₀ is passed through another polariser whose pass axis
- A short linear object of length L lies on the axis of a spherical mirror of focal
- A rod lies along the X-axis with one end at the origin and the other at x→∞. It carries
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