| ⇦ | 
| ⇨ |
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 radius of curvature of the convex face of a plano-convex lens is 12 cm
- If an electron and a proton have the same de-Broglie wavelength, then the kinetic
- A thermocouple is made from two metals, antimony and bismuth. If one junction
- The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index
- Three fourth of the active material decays in a radioactive sample in 3/4 sec
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The radius of curvature of the convex face of a plano-convex lens is 12 cm
- If an electron and a proton have the same de-Broglie wavelength, then the kinetic
- A thermocouple is made from two metals, antimony and bismuth. If one junction
- The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index
- Three fourth of the active material decays in a radioactive sample in 3/4 sec
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