| ⇦ | 
| ⇨ |
A planet moving along an elliptical orbit is closest to the sun at a distance of r₁. If v₁ and v₂ are the linear velocities at these points respectively then the ratio v₁ / v₂ is
Options
(a) ( r₁ / r₂)²
(b) r₂ / r₁
(c) (r₂ / r₁)²
(d) r₁ / r₂
Correct Answer:
r₂ / r₁
Explanation:
Angular momentum is conserved
L₁ = L₂ ⇒ mr₁v₁ = mr₂v₂ ⇒ r₁v₁ = r₂v₂
⇒ v₁ / v₂ = r₂ / r₁
Related Questions: - The charges Q, +q, and +q are placed at the vartices of an equilateral
- In Young’s double slit experiment, the slit seperation is 1 mm and the screen
- The half-life period of a radio-active element X is same as the mean life time
- ln a surrounding medium of temperature 10⁰C a body takes 7 min for a fall
- The acceleration due to gravity near the surface of a planet of radius R and density d
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The charges Q, +q, and +q are placed at the vartices of an equilateral
- In Young’s double slit experiment, the slit seperation is 1 mm and the screen
- The half-life period of a radio-active element X is same as the mean life time
- ln a surrounding medium of temperature 10⁰C a body takes 7 min for a fall
- The acceleration due to gravity near the surface of a planet of radius R and density d
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