A charged particle with charge q is shot towards another charged particle with charge Q…
Physics · JEE Main · NTA Exams — Electrostatics
A charged particle with charge q is shot towards another charged particle with charge Q which is fixed, with a speed v. it approaches upto a closest distance r and then returns. If q was given a speed 2v, the closest distance of approach would be


- r
- 2r
- r/2
- r/4
Answer
(D) r/4
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