A photosensitive metallic surface has work function, hv0 .If photons of energy 2hv0 fall on this surface, the electrons come out with a maximum velocity of 4x106m/* .When the photon energy is increased to 5hv0, then maximukm velocity of photoelectrons will be:
(a) 2x 107m/*
(b) 2x 106m/*
(c) 8x105m/*
(d) 8x106m/*
