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![[Post New]](/templates/default/images/icon_minipost_new.gif) 3 Apr 2007 13:24:34 IST
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g = GM/R2 on earth
On the planet : g' = G(2M)/(2R)2 = GM/2R2 = g/2
Hence time period = 2  (l/g') = 2 (2l/g) = 2 sec
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Bipin Kumar Dubey
Chemical Dept.
IIT Kharagpur
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this reply: 2 points
(with 0 
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