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A black hole is an object whose gravitat...

A black hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth (mass= `5.98xx10^(24)` kg) have to be compressed to be a black hole?

A

`10^-9 m`

B

`10^-6 m`

C

`10^-2 m`

D

100 m

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TARGET PUBLICATION-Gravitation-Exercise
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  2. The ratio of escape ve locity at earth (ve) to the escape ve locity at...

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  6. Two satellites A and B go round a planet in circular orbits having rad...

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  7. A satellite S is moving in an elliptical orbit around the earth. The m...

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  8. A remote - sensing satellite of earth revolves in a circular orbit at ...

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  9. The time period of a geostationary satellite is 24 h, at a height 6RE(...

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  10. If a satellite has to orbit the earth in a circular path every 6 hrs, ...

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  11. A satellite is moving with a constant speed 'v' in a circular orbit ab...

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  12. A satellite is orbiting close to the earth and has a kinetic energy K....

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  13. A body of mass m is dropped from a height nR above the surface of the ...

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  14. A satellite has kinetic energy K, potential energy V and total energy ...

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  15. What is the minimum energy required to launch a satellite of mass m fr...

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  16. A satellite of mass m is orbiting the earth ( of radius R) at a height...

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  17. The ratio of binding energy of a satellite at rest on earth's surface ...

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  18. If the mass of the Sun were ten times smaller and the universal gravit...

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  19. An extremely small and dense neutron star of mass M and radius R is ro...

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  20. A satellite is revolving in a circular orbit at a height 'h' from the ...

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