The work function of lithium is 2.5 eV. The maximum wavelength of light that can cause the Photo-electric effect in lithium is.
A. 3980Å
B. 4980 Å
C. 5980 Å
D. 6980 Å
Answer:B
The work function of lithium is 2.5 eV. The maximum wavelength of light that can cause the Photo-electric effect in lithium is.
A. 3980Å B. 4980 Å C. 5980 Å D. 6980 Å