A photosensitive metallic surface has work function ,hn0. If photons of energy 2hn0 fall on this surface,the electrons come out with a maximum velocity of 4 × 106 m/s. When the photon energy is increased to 5hn0 then maximum velocity of photo electrons will be _______
A. 2 × 10⁷ m/s
B. 2 × 10⁶ m/s
C. 8 × 10⁵ m/s
D. 8 × 10⁶ m/s
Answer:D
A photosensitive metallic surface has work function ,hn0. If photons of energy 2hn0 fall on this surface,the electrons come out with a maximum velocity of 4 × 106 m/s. When the photon energy is increased to 5hn0 then maximum velocity of photo electrons will be _______
A. 2 × 10⁷ m/s B. 2 × 10⁶ m/s C. 8 × 10⁵ m/s D. 8 × 10⁶ m/s