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A body weighs 700 gm wt on the surface of the earth. How much will it weigh on the surface of a planet whose mass is    1/7   and radius is half that of the earth

(a)      200 gm wt                       (b)  400 gm wt

(c)   50 gm wt                           (d)  300 gm wt

Answer:  b

(14)

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