Two identical particles of charge `q` each are connected by a massless spring of force constant `k`. They are placed over a smooth horizontal surface. They are released when the separation between them is `r` and spring is unstretched. If maximum extension of the spring is `r`, the value of `k` is (neglect gravitational effect) A. `(q)/(4r)sqrt((1)/(pi epsilon_(0)r))`B. `(q)/(2r)sqrt((1)/(pi epsilon_(0)r))`C. `(2q)/(r)sqrt((1)/(pi epsilon_(0)r))`D. None of these

Two identical particles of charge `q` each are connected by a massless

1.	Two identical particles of charge `q` each are connected by a massless spring of force constant `k`. They are placed over a smooth horizontal surface. They are released when the separation between them is `r` and spring is unstretched. If maximum extension of the spring is `r`, the value of `k` is (neglect gravitational effect) A. `(q)/(4r)sqrt((1)/(pi epsilon_(0)r))`B. `(q)/(2r)sqrt((1)/(pi epsilon_(0)r))`C. `(2q)/(r)sqrt((1)/(pi epsilon_(0)r))`D. None of these
Answer» Correct Answer - D

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