⇦ | ⇨ |
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: - The barrier potential of a p-n junction depends on
- The minimum wavelength of X-rays emitted by X-ray tube is 0.4125Å
- If M (A; Z), Mₚ and Mₙ denote the masses of the nucleus AZ X, proton
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
- The molar specific heats of an ideal gas at constant pressure and volume are denoted
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The barrier potential of a p-n junction depends on
- The minimum wavelength of X-rays emitted by X-ray tube is 0.4125Å
- If M (A; Z), Mₚ and Mₙ denote the masses of the nucleus AZ X, proton
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
- The molar specific heats of an ideal gas at constant pressure and volume are denoted
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