Estimate the speed with which electron emitted from a heated cathode of an evacuated tube impinge on the anode maintained at a potential difference of $500\;v$ , with respect to the cathode . Ignore the small initial speeds of the electrons . The specific charge of the electron (ie) its $\large\frac{e}{m}$ is given to be $1.76 \times 10^{11}\;kg^{-1}$

Question

$\begin{array}{1 1} 1.326 \times 10^7\;ms^{-1} \\ 1.326 \times 10^7\;kms^{-1} \\ 1.326 \times 10^7\;m/min \\ 1.326 \times 10^7\;km/min \end{array} $