ElectrostaticsHard
Question
Two positrons (e+) and two protons (p) are kept on four corners of a square of side a as shown in figure. The mass of proton is much larger than the mass of positron. Let q denotes the charge on the proton as well as the positron then the kinetic energies of one of the positrons and one of the protons respectively after a very long time will be -
Options
A.
B.
C.
D.
Solution
As mass of proton >>> mass of positron so initial acceleration of positron is much larger than proton. Therefore positron reach far away in very short time as compare to proton.
2Ke+ =
⇒ Ke+ =
and 2Kp = 
- 0⇒ Kp =
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