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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: - In which of the following systems will the radius of the first orbit (n=1) be minimum?
- A stationary particle explodes into two particles of masses m₁ and m₂ which move
- The coherence of two light sources means that the light waves emitted have
- The intermediate image formed by the objective of a compound microscope is
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In which of the following systems will the radius of the first orbit (n=1) be minimum?
- A stationary particle explodes into two particles of masses m₁ and m₂ which move
- The coherence of two light sources means that the light waves emitted have
- The intermediate image formed by the objective of a compound microscope is
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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