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A body revolved around the sun 27 times faster than the earth. What is the ratio of their radii?
Options
(a) 1 / 3
(b) 1 / 9
(c) 1 / 27
(d) 1 / 4
Correct Answer:
1 / 9
Explanation:
Using Kepler’s 3rd law
T^2=R^3
(1/27)^2/3=R1/R2
R1/R2=(1/3)^2=1/9.
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Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Light is emitted when
- A point charge is kept at the centre of a metallic insulated spherical shell. Then
- Young’s modulus of the material of a wire is 18×10¹¹ dyne cm⁻².its value in SI is
- A wire of length 2 m is made from 10 cm³ of copper. A force F is applied so that
- The S.I. unit of radioactivity is
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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