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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
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following statement is FALSE ?
- The input resistance of a silicon transistor is 100 W. Base current is changed
- One way in which the operation of a n-p-n transistor differs from that of a p-n-p
- A black body is at 727⁰C. It emits energy at a rate which is proportional to
- Two nuclei have their mass numbers into the ratio of 1:3
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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