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Define universal gravitational constant ...

Define universal gravitational constant (G). 

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In `F = (Gm_(1) ,m_(2))/r^2` taking `m_1 = m_2 = 1 kg, r = 1 m F = G`
The force of attraction between two bodies each of unit mass placed at unit distance apart is known as universal gravitational constant.
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Knowledge Check

  • What is the value of universal gravitational constant?

    A
    `6.67 xx 10^(-11)Nm^(2) kg^(-1)`
    B
    `6.67 xx 10^(-11)Nm^(2) kg^(-2)`
    C
    `6.67 xx 10^(-11)Nm^(2) kg^(-2)`
    D
    `6.67 xx 10^(-11)Nm kg^(-2)`

  • If the mass of the Sun were ten times smaller and the universal gravitational constant were ten time larger in magnitude, which of the following is not correct?

    A
    g' on the Earth will not change .
    B
    Reindrops will fall faster
    C
    Time period of a simple pendulum on the Earth would decrease
    D
    Walking on the ground would become more difficult.

    • Similar Questions

    Explore conceptually related problems

    Draw schematic drawing of Cavendish's experiment for determination of universal gravitational constant G and obtain formula used in it.

    It is known that the time of revolution T of a satellite around the earth depends on the universal gravitational constant G, the mass of the earth M, and the radius of the circular orbit R. Obtain an expression for T using dimensional analysis.

    If the value of universal gravitational constant is 6.67xx10^(11) Nm^2 kg^(-2), then find its value in CGS system.

    What is the SI unit of G, the universal gravitational constant ?

    If the energy, E = G^p h^q c^r, where G is the universal gravitational constant, h is the Planck's constant and c is the velocity of light, then the values of p are q and r are, respectively

    The distance moved by a particle in time from centre of ring under the influence of its gravity is given by x=a sin omegat where a and omega are constants. If omega is found to depend on the radius of the ring (r), its mass (m) and universal gravitation constant (G), find using dimensional analysis an expression for omega in terms of r, m and G.

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