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The ratio of the radii of the planets P...

The ratio of the radii of the planets `P_(1)` and `P_(2)` is a the ratio of their acceleraton due to gravity is b the ratio of the escape velocity form them will be

A

`ab`

B

`sqrt(ab)`

C

`sqrt(a//b)`

D

`sqrt(b//a)`

Text Solution

Verified by Experts

The correct Answer is:
B
As `(V_(e)P_(1))/(v_(e))P_(2)=sqrt(2g_(1)R_(1))/(2g_(2)R_(2))=sqrt(g_(1))/(g_(2))xx(R_(1))/(R_(2))=sqrt(ab)`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-GRAVITATION -Exercise 1
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  6. The time period of an earth satellite in circular orbit is independent...

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  7. The radius of the orbit of a satellite is r and its kinetic energy i...

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  8. The pitentil energy of a satellite is given as PE= lambda(KE) whe...

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  9. A 400 kg satellite is in a circular orbit of radius 2 R(E) about ...

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  10. The time period of a geostationary satellite at a height 36000 km ...

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  11. A simple pendulum has a time period T(1) on the earth 's surface ...

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  12. The mass of a planet is six times that of the earth. The radius of the...

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  13. For a body to escape from earth, angle from horizontal at which it sho...

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  14. The escape velocity form the earth is 11 kms^(-1) the esacpe veloc...

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  15. The ratio of the radii of the planets P(1) and P(2) is a the ratio ...

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  16. The mass of the moon is 7//81 th of earth 's mass and its radius is 1...

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  17. The escape velocity of a body from the earth is V(e) if the radius ...

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  18. What is the escape velocity for body on the surface of planet on w...

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  19. What is a period of revolution of the earth satellite ? Ignore the hei...

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  20. Two spherical planets P and Q have the same uniform density rho, masse...

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