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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 a franhofer diffraction experiment at a single slit using a light of wavelength
- Young’s modulus of the material of a wire is 18×10¹¹ dyne cm⁻².its value in SI is
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Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a franhofer diffraction experiment at a single slit using a light of wavelength
- Young’s modulus of the material of a wire is 18×10¹¹ dyne cm⁻².its value in SI is
- Which of the following statements is correct?
- A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
- A transformer of 100% efficiency has 200 turns in the primary coil and 40000 turns
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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