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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
- The volume of a nucleus is directly proportional to
- Dependence of intensity of gravitational field (E) of earth with distance(r)
- The equations of motion of a projectile are given by x=36 t metre and 2y=96t-9.8t²
- An object moving with a speed of 6.25 m/s, is deaccelerated at a rate given by
- The ratio of radii of planets A and B is K₁ and ratio of accelerations
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