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The radius of a planet is twice the radius of earth. Both have almost equal average mass densities. If Vp and Ve are escape velocities of the planet and the earth, respectively, then,
Options
(a) Ve = 1.5 Vp
(b) Vp = 1.5 Ve
(c) Vp = 2 Ve
(d) Ve = 3 Vp
Correct Answer:
Vp = 2 Ve
Explanation:
Escape velocity, vₑ = R√(8/3 πGP)
⇒ vₑ ∞ R ⇒ Vₚ / Vₑ = Rₚ / Rₑ = 2
Vₚ = 2 vₑ
Related Questions: - The dimensions of latent heat are
- A rod of 10 cm length is moving perpendicular to uniform magntic field of intensity
- Charge density for intrinsic semiconductor will be
- The value of Planck’s constant is
- A body of mass 2 kg travels according to the law x(t)=pt+qt²+rt³
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The dimensions of latent heat are
- A rod of 10 cm length is moving perpendicular to uniform magntic field of intensity
- Charge density for intrinsic semiconductor will be
- The value of Planck’s constant is
- A body of mass 2 kg travels according to the law x(t)=pt+qt²+rt³
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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