1
Q
State the photoelectricc effect
A
The photoelectric effect is the emission of electrons when an electromagnetic radiation of high frequency is incident on a metal surface.
2
Q
Define a photon
A
A photon is a packet of electromagnetic radiation energy.
3
Q
Define work function of a metal
A
Work function energy of a metal is the minimum energy required for an electron of the metal to escape from the metal surface.
3
Q
A
3
Q
A
H2 Physics
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