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The radius of orbit of a planet is two times that of the earth. The time period of planet is
Options
(a) 4.2 year
(b) 2.8 year
(c) 5.6 year
(d) 8.4 year
Correct Answer:
2.8 year
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two coherent sources of different intensities send waves which interfere.
- Two discs of moment of inertia l₁ and I₂ and angular speeds
- Pure Si at 300 k has equal electrons (nₑ) and hole (nh) concentrations
- A satellite of mass m revolves around the earth of radius R at a height x from
- A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a current
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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By keplers third law (T1^2/T2^2)=(R1^3/R2^3)
so,
x^2/1^2=(2r)^3/r^3
x^2=8
x=2.8