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A charged particle is shot with speed V...

A charged particle is shot with speed V towards another ifxed charged particle Q .It approaches Q up to a closest distnce r and then returns.If q were given a speed 2V, the closest distance of approach would be

A

r

B

2r

C

`(r )/(2)`

D

`( r )/(4)`

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-ELECTROSTATIC POTENTIAL AND CAPACITANCE -ASSIGNMENT SECTION - B
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