question_answer

A particle of specific charge \[q/m=\pi C\,k{{g}^{-1}}\] is projected from the origin toward positive \[x\]-axis with a velocity of \[10\,m\,{{s}^{-1}}\] in a uniform magnetic field\[\vec{B}=-2\hat{k}T\]. The velocity \[\vec{v}\] (in\[m{{s}^{-1}}\]) of particle after time t = 1/12 s will be 5\[\left[ \sqrt{M}i+j \right]\]. Find the value of M

Answer:

3