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Gravitation — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsGravitation1 Mark
MCQ
If the gravitational potential energy at infinity is assumed to be zero, the potential energy at distance (Re + h) from the centre of the earth:
  • A
    $\text{PE}=\frac{\text{GmM}_\text{e}}{(\text{R}_\text{e}+\text{h})}$
  • B
    $\text{PE}=\frac{-\text{GmM}_\text{e}}{(\text{R}_\text{e}+\text{h})}$
  • C
    $\text{PE}=\text{mgh}$
  • D
    $\text{PE}=\frac{-\text{GmM}_\text{e}}{2(\text{R}_\text{e}+\text{h})}$
✓

Answer

  1. $\text{PE}=\frac{-\text{GmM}_\text{e}}{(\text{R}_\text{e}+\text{h})}$

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