Calculating Kinetic Energy of Ejected Electron

The kinetic energy of an ejected electron is directly proportional to the frequency of the incident light.

The work function of a material is the maximum amount of energy required to remove an electron from its surface.

The formula λ_max = hc/φ is used to calculate the kinetic energy of an ejected electron.

The speed of an ejected electron is directly proportional to its kinetic energy.

Planck's constant is given in units of joules per second (J/s).

The formula KE = hν - φ is used to calculate the work function of a material.

The conversion factor of 1 eV = 1.602 x 10^-19 J is used to convert joules to electron volts.

The mass of an electron is approximately 1.00 x 10^-30 kg.

The speed of an ejected electron can be calculated using the formula KE = hν - φ.

The kinetic energy (KE) of an ejected electron can be calculated using the formula: KE = hν - φ
h is Planck's constant, approximately 6.63 x 10^-34 Js
ν is the frequency of the incident light in Hz
φ is the work function of the material in J

The maximum wavelength of light that can cause electron ejection can be calculated using the formula: λ_max = hc/φ
λ_max is the maximum wavelength for electron ejection
c is the speed of light, approximately 3.00 x 10^8 m/s

The work function (φ) of a material is the minimum amount of energy required to remove an electron from its surface
Work function is usually given in electron volts (eV) and can be converted to joules (J) using the conversion factor: 1 eV = 1.602 x 10^-19 J

The speed of ejected electrons can be calculated using the kinetic energy formula and the formula: v = sqrt(2KE/m)
v is the speed of the ejected electron
m is the mass of the electron, approximately 9.11 x 10^-31 kg