A) 1 : 2 : 2
B) 2 : 2 : 1
C) 1 : 2 : 1
D) 1 : 1 : 2
Correct Answer: D
Solution :
Kinetic energy in magnetic field remains constant and it is \[K=q\,V\ \ \Rightarrow \ K\propto q\ \](V = constant) \[\therefore \ {{K}_{p}}\ :\ {{K}_{d}}\ :\ {{K}_{\alpha }}\ ={{q}_{p}}\ :\ {{q}_{d}}\ :\ {{q}_{a}}=1:1:2\]
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