The work function, kinetic energy, and wavelength of light are interrelat through the photoelectric effect. Here’s a breakdown of their relationship:
Work function (Φ):
The minimum energy requir to remove an electron from the surface of a material.
Measur in electron volts (eV).
Kinetic energy (KE):
The energy possess by a moving electron.
When light strikes a metal surface, it can eject electrons from the surface.
The equation relating these three quantities is:
KE = hν – ΦThe kinetic Asia Mobile Number List energy of the eject electrons depends on the frequency (or wavelength) of the light and the work function of the metal.
where:
h is Planck’s WhatsApp Number Digital Library constant (approximately 6.626 × 10^-34 J·s)
ν is the frequency of the light
Φ is the work function of the metal
Key points to remember:
If the frequency of the TWD Directory light is below the threshold frequency (ν₀ = Φ / h), no electrons will be eject, regardless of the intensity of the light.
The kinetic energy of the eject electrons increases linearly with the frequency of the light.
The number of eject electrons increases with the intensity of the light, but the kinetic energy of each electron remains the same.
By understanding the relationship
Between work function, kinetic energy, and wavelength, you can better understand the photoelectric effect and its applications in various fields, such as electronics and materials science.
