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The moon revolves round the earth 13 tim...

The moon revolves round the earth `13` times in one year. If the ratio of sun-earth distance to earth-moon distance is `392`, then the ratio of masses of sun and earth will be

A

`365`

B

`356xx10^(-12)`

C

`3.56xx10^(5)`

D

`1`

Text Solution

Verified by Experts

The correct Answer is:
C

From Kepler's `3rd` law, `T^(2)alpha(r^(3))/(M)`
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Knowledge Check

  • The earth revolved around the sun.

    A
    was revolving
    B
    is revolving
    C
    had revolved
    D
    revolves
  • The mass of moon is 1/81 of the mass of earth. If gravitational force of earth on moon is F, then the gravitational force of moon on earth is

    A
    F/81
    B
    F
    C
    9F
    D
    81F
  • If the earth is at one-fourth of its present distance from the sun, the duration of the year will be

    A
    one-half the present year
    B
    one-fourth the present year
    C
    one-sidh the present year
    D
    one-eighth the present year
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