When radiation is incident on a photoelectron emitter, the stopping potential is found to be 9 volts. If \[e/m\] for the electron is \[1.8\times {{10}^{11}}\,C\,k{{g}^{-1}}\] the maximum velocity of the ejected electrons is [Kerala (Engg.) 2002]

\[1.8\times {{10}^{5}}\,m{{s}^{-1}}\]

\[6\times {{10}^{5}}\,m{{s}^{-1}}\]

\[8\times {{10}^{5}}\,m{{s}^{-1}}\]

\[1.8\times {{10}^{6}}\,m{{s}^{-1}}\]

When radiation is incident on a photoelectron emitter, the stopping po

1.	When radiation is incident on a photoelectron emitter, the stopping potential is found to be 9 volts. If \[e/m\] for the electron is \[1.8\times {{10}^{11}}\,C\,k{{g}^{-1}}\] the maximum velocity of the ejected electrons is [Kerala (Engg.) 2002]
A.	\[6\times {{10}^{5}}\,m{{s}^{-1}}\]
B.	\[8\times {{10}^{5}}\,m{{s}^{-1}}\]
C.	\[1.8\times {{10}^{6}}\,m{{s}^{-1}}\]
D.	\[1.8\times {{10}^{5}}\,m{{s}^{-1}}\]
Answer» D. \[1.8\times {{10}^{5}}\,m{{s}^{-1}}\]