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 \[\frac{1}{7}\] and radius is half that of the earth [CMC Vellore 1984; AFMC 2000]

• A. 200 gm wt
• B.   400 gm wt
• C. 50 gm wt        
• D. 300 gm wt