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 1/9
th 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)
(A) R/3
(B) R/4
(C) R/9
(D) R/2
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Explanation:
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 1/9
th 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)
(A) R/3
(B) R/4
(C) R/9
(D) R/2
Answered by
1
Answer:
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 1/9
th 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)
(A) R/3
(B) R/4
(C) R/9 ✔✔✔✔
(D) R/2
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