A) \[{{10}^{-8}}\,m\]
B) \[2\times {{10}^{-8}}\,m\]
C) \[{{10}^{-6}}\,m\]
D) \[{{10}^{-10}}\,m\]
Correct Answer: A
Solution :
If electron moves in a magnetic field at an angle \[\theta \] (other than \[{{0}^{\text{o}}},\,{{180}^{\text{o}}}\] or \[{{90}^{\text{o}}}\]), its velocity can be resolved in two components one along \[\vec{B}\] and another perpendicular to \[\vec{B}\]. Let the two components be \[{{v}_{||}}\] and \[{{v}_{\bot }}\] ThenYou need to login to perform this action.
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