| ⇦ | 
| ⇨ |
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: - Two cars A and B moving with same speed of 45 km/hr along same direction.
- In the series resonance the value of impedence is 3 Ω and the resistance is 4Ω,
- A condenser has a capacity 2 μF and is charged to a voltage of 50 V. The energy
- An inclined plane of length 5.60m making an angle of 45⁰ with the horizontal is placed
- A ball is dropped from a height of 20 cm. Ball rebounds to a height of 10cm
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two cars A and B moving with same speed of 45 km/hr along same direction.
- In the series resonance the value of impedence is 3 Ω and the resistance is 4Ω,
- A condenser has a capacity 2 μF and is charged to a voltage of 50 V. The energy
- An inclined plane of length 5.60m making an angle of 45⁰ with the horizontal is placed
- A ball is dropped from a height of 20 cm. Ball rebounds to a height of 10cm
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