what is the difference between frequency and intensity of light how kinetic energy of electrons ejected from a metal surface - Chemistry - Structure of Atom

Question

what is the difference between frequency and intensity of
light
how kinetic energy of electrons ejected from a metal surface
directly proportional to frequency and independent of intensityand
number of electrons is dependent on intensity and independent of
frequency

Anuradha Puri · Accepted Answer

Frequency is defined as the number of wavelengths passing a fixed
point per unit time

Whereas,

Intensity of light is the number of photons falling on a certain
area, within some interval of time

Energy of an emitted electron depends on the energy of the photon(
since the electron absorbs the energy of photon and if its energy
is greater than the work function of the metal, the electron is
emitted) Now, the enrgy of photon depends on the frequency of the
photon Therefore, the energy of the emitted electron depends on the
frequency of the photon

The intensity of the source only affects how long it takes for the
photoemission

Intensity is the number of photons falling on a certain
area Now, a single photon can only eject a single electron because
the energy of one photon can only be absorbed by one electron
Therefore, number of electrons emitted is dependent on intensity of
light and independent of frequency of light

what is the difference between frequency and intensity of light how kinetic energy of electrons ejected from a metal surface directly proportional to frequency and independent of intensityand number of electrons is dependent on intensity and independent of frequency

what is the difference between frequency and intensity of light

how kinetic energy of electrons ejected from a metal surface directly proportional to frequency and independent of intensityand number of electrons is dependent on intensity and independent of frequency