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A planet revolves round the sun in an el...

A planet revolves round the sun in an elliptical orbit of semi minor and semi major axes `x` and `y` respectively. Then the time period of revolution is proportional to

A

`(x+y)^(3/2)`

B

`(y-x)^(3/2)`

C

`x^(3/2)`

D

`y^(3/2)`

Text Solution

Verified by Experts

The correct Answer is:
D
From Kepler.s 3rd law , `T^(2)alpha r^(3)`
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NARAYNA-GRAVITATION-EXERCISE -I (C.W.)
  1. If 'A' is areal velocity of a planet of mass M, its angular momentum i...

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  2. A planet revolves round the sun in an elliptical orbit of semi minor a...

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  3. Let 'A' be the area swept by the line joining the earth and the sun du...

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  4. A satellite moving in a circular path of radius r around earth has a t...

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  5. The time of revolution of planet A round the sun is 8 times that of an...

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  6. The distance of Neptune and Saturn from the Sun are respectively 10^(1...

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  7. The period of moon's rotation around the earth is approx. 29 days. IF ...

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  8. If the mass of earth were 2 times the present mass, the mass of the mo...

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  9. Two sphere of masses m and M are situated in air and the gravitational...

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  10. The gravitational force between two bodies is 6.67xx10^(-7) N when the...

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  11. Two identical spheres each of radius R are placed with their centres a...

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  12. A satellite is orbiting around the earth. If both gravitational force ...

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  13. Mass M=1 unit is divided into two parts X and (1-X). For a given separ...

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  14. If g on the surface of the earth is 9.8m//s^(2), its value at a height...

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  15. If g on the surface of the earth is 9.8ms^(-2), its value of a depth o...

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  16. If mass of the planet is 10% less than that of the earth and radius of...

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  17. The angular velocity of the earth with which it has to rotate so that ...

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  18. Assume that the acceleration due to gravity on the surface of the moon...

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  19. The value of acceleration due to gravity at the surface of earth

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  20. The point at which the gravitational force acting on any mass is zero ...

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