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The ratio of the weights of a body on the Earth's surface to that on the surface of a planet is 9:4. The mass of the planet is of that of the Earth. If 'R' is the radius of the Earth, what is the radius of the planet?(Take the planets to have the same mass density)
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Newton's Law of Gravitation -
- wherein
Force is along the line joining the two masses
1 - planet 2- Earth
Option 1)
Option 2)
Option 3)
Option 4)