Question

The emission of photoelectrons from a metal surface ceases when the wavelength of
the incident light exceeds 5.6 x 10-7m. Calculate the maximum kinetic energy (in eV)
of electrons emitted from the surface when the incident light has a wavelength of 4.2
x 10-7m.​

Answer 1

Explanation:

λ=cν=3.0x108ms−15.4x1014s−1 =5.6x10−7m=560nm. Q10.2. Calculate the energy of a photon of a light with the frequency ... effect, the maximum kinetic energy of the ejected electron