Home
Class 11
PHYSICS
Two identical solid uniform spheres each...

Two identical solid uniform spheres each of radius R are kept touching each other. Find how gravitational force of attraction between them depends on R ?

A

`Falphar^4`

B

`Falpha1/r^2`

C

`Falpha1/r^4`

D

`Falphar^2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    PATHFINDER|Exercise QUESTION BANK|139 Videos

  • HYDROSTATICS, VISCOSITY AND SURFACE TENSION (HYDRODYNAMICS)

    PATHFINDER|Exercise QUESTION BANK|198 Videos

Similar Questions

Explore conceptually related problems

Two metals spheres of the same material and of equal radius R are touching each other.Prove that the force of attraction between them is proportional to R^4

Find the number of sphere of radius r touching the coordinate axes.

A planet is rotating round a heavy star along a circular path of radius R with time T. if the gravitational force of attraction between planet and star is proportional to R^(-5/2) , then T^2 prop R^x . What is the value of x ?

A planet is rotating round a heavy star along a circular path of radius R with time T. If the gravitational force of attraction between planet & star is proportional R^(-5//2) then T^2 prop R^x what is the value of x?

Two particle of mass m_1 and m_2 approach each other due to their mutual gravitational attraction only. Then

If the distance between the centre of a gold sphere of radius 5mm and of a lead sphere of radius 11.5 cm is 15 cm and the force of gravitational attraction between them is 2.16xx10^(-4) dyn , find the value of G, the universal gravitational constant. Densities of gold and lead are 19.3g*cm^(-3) and 11.3 g*cm^(-3) respectively.

PATHFINDER-GRAVITATION-QUESTION BANK
  1. A Saturn year is 29.5 times the Earth year. How far is the Saturn from...

    Text Solution

    |

  2. A mass M is to be divided into two parts m1 and my such that the gravi...

    Text Solution

    |

  3. Two identical solid uniform spheres each of radius R are kept touching...

    Text Solution

    |

  4. A man can jump 1.0 m high on the earth. Calculate the approximate heig...

    Text Solution

    |

  5. The work done in slowly lifting a body from earth’s surface to a heigh...

    Text Solution

    |

  6. The gravitational field in a region is given by vecE = (4hati+hatj)N/(...

    Text Solution

    |

  7. A particle is projected from the mid-point of the line joining two fix...

    Text Solution

    |

  8. Two masses of mass m each are fixed at a distance of 2d as shown in fi...

    Text Solution

    |

  9. Two small balls of mass m each are suspended side by side by two equal...

    Text Solution

    |

  10. A spherical cavity is made in a lead sphere of radius R such that its ...

    Text Solution

    |

  11. A projectile is fired vertically upwards from the surface the earth wi...

    Text Solution

    |

  12. If W1, W2 and W3 represents the work done in moving a particle from A ...

    Text Solution

    |

  13. Two spheres of masses m and M are situated in air and gravitational fo...

    Text Solution

    |

  14. A large vessel of height H is filled with a liquid of density r upto t...

    Text Solution

    |

  15. Three particles, each of mass m, are situated at the vertices of an eq...

    Text Solution

    |

  16. If three uniform spheres, each having mass M and radius R, are kept in...

    Text Solution

    |

  17. The maximum vertical distance through which a fully dressed astronaut ...

    Text Solution

    |

  18. Two equal masses each m are hung from a balance whose scale pans diffe...

    Text Solution

    |

  19. If a man at the equator would weight (3/5)th of his weight, the angula...

    Text Solution

    |

  20. Two bodies with masses M1 and M2 are initially at rest and a distance ...

    Text Solution

    |