A planet of radius R= 1 10 imes( ext radius of Earth ) has the same mass density as…
Physics · JEE Advanced · NTA Exams — Gravitation
A planet of radius \(R=\frac{1}{10} \ imes(\ ext { radius of Earth })\) has the same mass density as Earth. Scientists dig a well of depth 
on it and lower a wire of the same length and of linear mass density 10–3 kg m–1 into it. If the wire is not touching anywhere, the force applied at the top of the wire by a person holding it in place is (take the radius of Earth = 6 × 106 m and the acceleration due to gravity on Earth is 10 m s–2).
on it and lower a wire of the same length and of linear mass density 10–3 kg m–1 into it. If the wire is not touching anywhere, the force applied at the top of the wire by a person holding it in place is (take the radius of Earth = 6 × 106 m and the acceleration due to gravity on Earth is 10 m s–2).- 96 N
- 108 N
- 120 N
- 150 N
Answer
(B) 108 N
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