question_answer

A proton (mass \[=1.67\times {{10}^{-27}}\,kg\] and charge \[=1.6\times {{10}^{-19}}\,C)\] enters perpendicular to a magnetic field of intensity 2 \[weber/{{m}^{2}}\] with a velocity \[3.4\times {{10}^{7}}\,m/\sec \]. The acceleration of the proton should be                   [DPMT 1999]

A)            \[6.5\times {{10}^{15}}\,m/{{\sec }^{2}}\]                  

B)            \[6.5\times {{10}^{13}}\,m/{{\sec }^{2}}\]

C)            \[6.5\times {{10}^{11}}\,m/{{\sec }^{2}}\]                  

D)            \[6.5\times {{10}^{9}}\,m/{{\sec }^{2}}\]