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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
- The wavelength of the first line of Lymasn series for hydrogen atom is equal
- A nucleus of mass number 220, initially at rest, emits an α-particle. If the Q-value
- When a sound wave of wavelength λ is propagating in a medium,
- Maximum range for a projectile motion is given as R. The maximum height will be
- The thermo e.m.f. E in volts of a certain thermocouple is found to vary
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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