Two radiations with photon energies 0.9 eV and 3.3 eV respectively are falling on a metallic surface successively. If the work function of the metal is 0.6 eV, then the ratio of maximum speeds of emitted electrons will be ………..
A. 1 : 4
B. 1 : 3
C. 1 : 1
D. 1 : 9
Answer:B
Two radiations with photon energies 0.9 eV and 3.3 eV respectively are falling on a metallic surface successively. If the work function of the metal is 0.6 eV, then the ratio of maximum speeds of emitted electrons will be ………..
A. 1 : 4 B. 1 : 3 C. 1 : 1 D. 1 : 9