A charged particle having a mass of 1.6x...

A charged particle having a mass of `1.6xx10^(-26) kg` comes out of accelerator tube with kinetic energy `2xx10^3 eV` . Calculate the smallest magnitude of the magnetic field that should be applied in vertically downwards direction to just prevent the charged particle from colliding the plate (Assume charge on particle = charge of the proton)

2 T

4 T

0.02 T

0.04 T

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