Home
Class 12
PHYSICS
A photon of energy 2.5 eV and wavelength...

A photon of energy 2.5 eV and wavelength ′ λ ′ falls on a metal surface and the ejected electrons have maximum velocity ′ v ′ . If the ′ λ ′ of the incident light is decreased by 20%, the maximum velocity of the emitted electrons is doubled. The work function of the metal is :

Promotional Banner

Similar Questions

Explore conceptually related problems

An increase in the intensity of incident light does not change the maximum velocity of the emitted photo electrons.Why ?

For a certain metal nu = 2 nu_0 and the electrons come out with a maximum velocity of 4 xx 10^6 m/s . If the value of nu = 5 nu_0 , then maximum velocity of the photoelectrons will be

When the energy of the incident radiation is increased by 20 % , kinetic energy of the photoelectrons emitted from a metal surface increased from 0.5 eV to 0.8 eV . The work function of the metal is

When light of 2.5 eV falls on a metal surface, maximum kinetic energy of electron is T. If incident radiation of 4 eV falls on same metal surface, maximum kinetic energy of electrons is doubled. The work function of metal is

The velocity of the most energetic electrons emitted from a metallic surface is doubled when the frequency nu of incident radiation is double. The work function of this metal is

A photon of wavelength 3315overset@ A falls on photosensitive material and eject electron of maximum energy 3 xx 10^-19 J . Calculate the work function of the material in eV.