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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
- A beam of light consisting of red, green and blue colours is incident on a right
- The ratio of minimum wavelengths of Lyman and Balmer series will be
- Three resistances P,Q,R each of 2Ω and an unknown resistances S form the four arms
- The magnifying power of a convex lens of focal length 10 cm, when the image
- A tuning fork of frequency x produces 4 beats with a source of 256 Hz and 8 beats
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