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CBSE Class 11-science Answered

Gravitation
Asked by | 04 Jan, 2010, 07:04: PM
Expert Answer

False.

PE = -GMm(1/r2 - 1/r1) = GMm(r2 - r2)/(r2 r1)

Hence when r2 ≈ r1 = R

then,

PE = -GMm(1/r2 - 1/r1) = GMm(r2 - r2)/R2

= gm(r2 - r2) ......using GM/R2 = g.

Regards,

Team,

TopperLearning.

 

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