A metal emits no electrons if the incident light energy falls below certain threshold. For photo-emission, you would decrease
A. the intensity of light
B. the frequency of light
C. the wavelength of light
D. the collector potential.
Answer:C
A metal emits no electrons if the incident light energy falls below certain threshold. For photo-emission, you would decrease
A. the intensity of light B. the frequency of light C. the wavelength of light D. the collector potential.