Proton, deuteron and alpha particle have...

Proton, deuteron and alpha particle have same momentum. They are projected in the same magnetic field. Then choose the correct ratio of forces and their speeds.

`F_p:F_d:F_a=4:2:1 , V_p:V_d:V_a=2:1:1`

`F_p:F_d:F_a=2:1:1 , V_p:V_d:V_a=4:2:1`

`F_p:F_d:F_a=1:2:1 , V_p:V_d:V_a=1:2:1`

`F_p:F_d:F_a=1:1:1 , V_p:V_d:V_a=1:1:1`

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