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Match the List-I with List-II (O is the ...

Match the List-I with List-II (O is the point object shown in diagram)

A

`{:(P,Q,R,S),(3,1,4,2):}`

B

`{:(P,Q,R,S),(1,2,3,2):}`

C

`{:(P,Q,R,S),(3,1,3,2):}`

D

`{:(P,Q,R,S),(1,4,2,4):}`

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Four charges Q_(1), Q_(2), Q_(3) and Q_(4) oof same magnitude are fixed along the x axis at x=-2a, -a, +a and +2a , respectively. A positive charge q is placed on the positive y axis at a distance b gt 0 . Four options of the signs of these charges are given in List I. The direction of the forces on the charge q is given in List II. Match List I with List II and select the correct answer using the code given below the lists. {:(,"List-I",,,"List-II"),((P),Q_(1)","Q_(2)","Q_(3)","Q_(4) "all positive",,(1),+x),((Q),Q_(1)","Q_(2) " positive, "Q_(3)","Q_(4)" negative",,(2),-x),((R),Q_(1)","Q_(4)" positive ,"Q_(2)","Q_(3)" negative",,(3),+y),((S),Q_(1)","Q_(3)" positive , "Q_(2)","Q_(4)" negative",,(4),-y):}

Match list I with II and select the correct answer :