Home
Class 12
CHEMISTRY
The minimum energy required for the emis...

The minimum energy required for the emission of photoelectron from the surface of a metal is `4.95 xx10^(-19)J` . Calculate the critical frequency of the photon required to eject the electron . ` h = 6.6 xx10^(-34) J` sec

Text Solution

Verified by Experts

Energy of photon absorbed E
`E=(hc)/(lamda)=(6.626xx10^(-27)xx3.0xx10^(10))/(360xx10^(-8))`
`E=5.52xx10^(-11).erg=5.52xx10^(-18)J`
Promotional Banner

Similar Questions

Explore conceptually related problems

A hot metal emits photons of light with energy 3.0 xx 10^(-19) J . Calculate the frequency and wavelength of the photon?

A hot metal emits photons of light with energy 3.0 xx 10^(-19) J . Calculate the frequency and wavelength of the photon?

The threshold wavelength for emission of photoelectrons from a metal surface is 6 xx 10^(-7) m. What is the work function of the material of the metal surface ?

The minimum energy required to remove the electron from metal surface is 7.50 xx 10^(-19) J . What will be the stopping potential required when this metal surface is exposed to U.V. light of lambda = 375 Å ?

Calculate the frequency of a photon, having energy 41.25 eV. (h=6.6xx10^(-34) Js) .

The energy required to remove an electron from metal X is E = 3.31 xx 10^(-20)J . Calculate the maximum wavelength of light that can be photoeject an electron from metal X :

The minimum energy required for the electron emission from the metal surface can be supplied to the free electrons by which of the following physical processes ?

The energy of an electron is 4.0 xx10^(-19) J.Express it in eV.

The energy of a photon is given as 3.03xx10^(-19)J . The wavelength of the photon is

The threshold frequency for the ejection of electrons from potassium metal is 5.3xx10^(14) s^(-1) . Will the photon of a radiation having energy 3.3xx10^(-19) J exhibit photoelectric effect? (h=6.626xx10^(-34) Js)