Questions
The density of a newly discovered planet is twice that of earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is R, the radius of the planet would be :
detailed solution
Correct option is C
g=GMR2=43πGρRNow according to question gplanet = gearthSo, 43πGρplanet Rplanet =43πGρearth Rearth ⇒Rplanet =12Rearth ∵ρplanet =2ρearthTalk to our academic expert!
Similar Questions
Dependence of intensity of gravitational field (E) of earth with distance ( r) from center of earth is correctly represented by :
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