In photoelectric effect, the electrons are ejected from metals if the incident light has a certain minimum
In photoelectric effect, the electrons are ejected from metals if the incident light has a certain minimum
- [AIIMS 2006]
- A
Wavelength
- B
Frequency
- C
Amplitude
- D
Angle of incidence
Similar Questions
What is called as photon ?
What is called as photon ?
Assertion : The photoelectrons produced by a monochromatic light beam incident on a metal surface, have a spread in their kinetic energies.
Reason : The work function of the metal varies as a function of depth from the surface.
Assertion : The photoelectrons produced by a monochromatic light beam incident on a metal surface, have a spread in their kinetic energies.
Reason : The work function of the metal varies as a function of depth from the surface.
- [AIIMS 2006]
The electrons are emitted in the photoelectric effect from a metal surface
The electrons are emitted in the photoelectric effect from a metal surface
Light of intensity $10^{-5}\; W m ^{-2}$ falls on a sodium photo-cell of surface area $2 \;cm ^{2}$. Assuming that the top $5$ layers of sodium absorb the incident energy, estimate time required for photoelectric emission in the wave-picture of radiation. The work function for the metal is given to be about $ 2\; eV$. What is the implication of your answer?
Light of intensity $10^{-5}\; W m ^{-2}$ falls on a sodium photo-cell of surface area $2 \;cm ^{2}$. Assuming that the top $5$ layers of sodium absorb the incident energy, estimate time required for photoelectric emission in the wave-picture of radiation. The work function for the metal is given to be about $ 2\; eV$. What is the implication of your answer?
According to photon theory of light which of the following physical quantities associated with a photon do not/does not change as it collides with an electron in vacuum
According to photon theory of light which of the following physical quantities associated with a photon do not/does not change as it collides with an electron in vacuum