A photosensitive metallic surface has work function \[h{{v}_{0}}\]. If photons of energy \[2h{{v}_{0}}\] fall on this surface the electrons come out with a maximum velocity of \[4\times {{10}^{6}}\,m/s\]. When the photon energy is increases to \[5h{{v}_{0}}\] then maximum velocity of photo electron will be [CBSE PMT 2005]

• A.            \[2\times {{10}^{6}}\,m/s\]   
• B.            \[2\times {{10}^{7}}\,m/s\]
• C.            \[8\times {{10}^{5}}\,m/s\]   
• D.            \[8\times {{10}^{6}}\,m/s\]