| ⇦ | 
| ⇨ |
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: - A 2 kg mass starts from rest on an inclined smooth surface with inclination
- The mean free path of molecules of a gas,(radius ‘r’) is inversely proportional to
- A body of mass 3 kg acted upon by a constant force is displaced by S meter
- The wetability of a surface by a liquid depends primarily on
- A force F=ai+3j+6k is acting at a point r=2i-6j-12k. The value of α for
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A 2 kg mass starts from rest on an inclined smooth surface with inclination
- The mean free path of molecules of a gas,(radius ‘r’) is inversely proportional to
- A body of mass 3 kg acted upon by a constant force is displaced by S meter
- The wetability of a surface by a liquid depends primarily on
- A force F=ai+3j+6k is acting at a point r=2i-6j-12k. The value of α for
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