What is photoelectron ?
What is photoelectron ?
When clean metal surface is irradiated with radiation of sufficiently high frequency, electrons are emitted from metal surface. This phenomena is called photoelectric effect.
Similar Questions
Do all the electrons that absorb a photon come out as photoelectrons ?
Do all the electrons that absorb a photon come out as photoelectrons ?
Write equation of mass of photon.
Write equation of mass of photon.
A pulse of light of duration $100 \ ns$ is absorbed completely by a small object initially at rest. Power of the pulse is $30 \ mV$ and the speed of light is $3 \times 10 ^8\ ms ^{-1}$. The final momentum of the object is :
A pulse of light of duration $100 \ ns$ is absorbed completely by a small object initially at rest. Power of the pulse is $30 \ mV$ and the speed of light is $3 \times 10 ^8\ ms ^{-1}$. The final momentum of the object is :
- [IIT 2013]
The light of two different frequencies whose photons have energies $3.8 \,eV$ and $1.4 \,eV$ respectively, illuminate a metallic surface whose work function is $0.6 \,eV$ successively. The ratio of maximum speeds of emitted electrons for the two frequencies respectivly will be
The light of two different frequencies whose photons have energies $3.8 \,eV$ and $1.4 \,eV$ respectively, illuminate a metallic surface whose work function is $0.6 \,eV$ successively. The ratio of maximum speeds of emitted electrons for the two frequencies respectivly will be
- [JEE MAIN 2022]
When an inert gas is filled in the place vacuum in a photo cell, then
When an inert gas is filled in the place vacuum in a photo cell, then