The work function of iron is 4.7 V. calculate the cut-off wavelength for this metal.
A. 2633 Å
B. 26.4 × 10-7 m
C. 13.2 × 10-10 m
D. 1320 Å
Answer:A
The work function of iron is 4.7 V. calculate the cut-off wavelength for this metal.
A. 2633 Å B. 26.4 × 10-7 m C. 13.2 × 10-10 m D. 1320 Å