When wavelength of incident photon is decreased then
When wavelength of incident photon is decreased then
- A
Velocity of emitted photo-electron decreases
- B
Velocity of emitted photoelectron increases
- C
Velocity of photoelectron do not charge
- D
Photo electric current increases
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In photoelectric effect if the intensity of light is doubled then maximum kinetic energy of photoelectrons will become
In photoelectric effect if the intensity of light is doubled then maximum kinetic energy of photoelectrons will become
A parallel beam of light of wavelength $900\,nm$ and intensity $100\,Wm ^{-2}$ is incident on a surface perpendicular to the beam. Tire number of photons crossing $1\,cm ^{2}$ area perpendicular to the beam in one second is :
A parallel beam of light of wavelength $900\,nm$ and intensity $100\,Wm ^{-2}$ is incident on a surface perpendicular to the beam. Tire number of photons crossing $1\,cm ^{2}$ area perpendicular to the beam in one second is :
- [JEE MAIN 2022]
Photon and electron are given same energy $({10^{ - 20}}J)$. Wavelength associated with photon and electron are ${\lambda _{Ph}}$ and ${\lambda _{el}}$ then correct statement will be
Photon and electron are given same energy $({10^{ - 20}}J)$. Wavelength associated with photon and electron are ${\lambda _{Ph}}$ and ${\lambda _{el}}$ then correct statement will be
Dual nature of radiation is shown by
Dual nature of radiation is shown by
Energy conversion in a photoelectric cell takes place from
Energy conversion in a photoelectric cell takes place from