The ratio of the weights of a body on the Earth’s surface to that on the surface of a planets 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)

Gravitation: JEE Main 2019 Physics question

JEE Main 2019 · 12 Apr, Evening shift · Q7255

JEE Main 201912 Apr, Evening shiftPhysicsMediumGravitation159× since 2002

The ratio of the weights of a body on the Earth’s surface to that on the surface of a planets is 9 : 4. The mass of the planet is

{1 \over 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)

JEE Main 2019 Gravitation Question with Solution (12 Apr Evening shift, Q7255) | JEE Arc

JEE Main 2019 · 12 Apr, Evening shift · Q7255

JEE Main 201912 Apr, Evening shiftPhysicsMediumGravitation159× since 2002

The ratio of the weights of a body on the Earth’s surface to that on the surface of a planets is 9 : 4. The mass of the planet is

{1 \over 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)