The photoelectric effect is described as the ejection of electrons from the surface of a metal when?
A. It is heated
B. It is placed in strong electric field
C. Electrons of suitable velocity
D. Light of suitable wavelength falls on it
Answer:D
The photoelectric effect is described as the ejection of electrons from the surface of a metal when?
A. It is heated B. It is placed in strong electric field C. Electrons of suitable velocity D. Light of suitable wavelength falls on it