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Column-I describe the value of variables indicated in column-II Assume potential energy in gravitation and electrostatics to be zero at infinity if the quantity mentioned in columnII is a vector positive and negative refer to the direction and increasing or decreasing refer to magnitude Match the appropriate entries.
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Correct Answer - [(A)QRS(B)S(C)P(D)T]
(P) `U=-(Gm_(1)m_(2))/r` -ve and increasing
(Q) `qdownarrow Rightarrow U_(c a p)uparrow Rightarrow U_(mg)uparrow` +ve and increasing
(R) `v uparrow and increases`
(S) If object is from Y to `2fV_(1) downarrow`
If object is from 2f to `fV_(1) uparrow` velocity is always in same direction
(T) `U=-(kQq)/r r downarrow becomes more -ve`
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