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Masses 2kg and 8kg are 18cm apart. The p...

Masses `2kg` and `8kg` are `18cm` apart. The point where the gravitational field due to them is zero, is

A

6 cm from 8kg mass

B

6 cm from 2 kg mass

C

1.8cm from 8 kg mass

D

9 cm from each mass

Text Solution

Verified by Experts

The correct Answer is:
B
distance of null poin `x=e/(sqrt((m_(2))/(m_(1)))+1)`
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NARAYNA-GRAVITATION-EXERCISE -I (C.W.)
  1. The value of acceleration due to gravity at the surface of earth

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

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  3. Masses 2kg and 8kg are 18cm apart. The point where the gravitational f...

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  4. Particles of masses m(1) and m(2) are at a fixed distance apart. If th...

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  5. The PE of three objects of masses 1kg,2kg and 3kg placed at the three ...

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  6. A small body is initially at a distance r from the centre of earth. r ...

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  7. A body of mass 'm' is raised from the surface fo the earth to a height...

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  8. A person brings a mass 2kg from A to B. The increase in kinetic energy...

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  9. The work done liftting a particle of mass 'm' from the centre of the e...

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  10. The figure shows two shells of masses m(1) and m(2). The shells are co...

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  11. Energy required to move a body of mass m from an orbit of radius 2R to...

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  12. the ratio of escape velocities of two planets if g value on the two pl...

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  13. The escape velocity from the surface of the earth of radius R and dens...

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  14. A body is projected vertically up from surface of the earth with a vel...

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  15. A spaceship is launched in to a circular orbit of radius R close to su...

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  16. The escape velocity from the earth is 11 km//s. The escape velocity fr...

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  17. An object of mass m is at rest on earth's surface. Escape speed of thi...

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  18. A satellite revolves in a circular orbit with speed, V=1/(sqrt(3))V(e)...

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  19. A space station is set up in space at a distance equal to the earth's ...

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  20. The orbital speed for an earth satellite near the surface of the earth...

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