When light is incident on a surface, photoele | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) According to Einstein's photoelectric equation, $K_{max} = h
u - \Phi$, where $h
u$ is the energy of the incident photon and $\Phi$ is the work

Vedclass · Accepted Answer

The value of kinetic energy is equal to or less than a maximum kinetic energy.

Vedclass · Answer

(C) According to Einstein's photoelectric equation, $K_{max} = h
u - \Phi$, where $h
u$ is the energy of the incident photon and $\Phi$ is the work function of the metal surface.Photoelectrons are emitted from different depths within the metal surface.Electrons emitted from the surface have the maximum kinetic energy $(K_{max})$.Electrons emitted from deeper layers lose some energy due to collisions before escaping the surface.Therefore, the kinetic energy of emitted photoelectrons ranges from $0$ to $K_{max}$.Thus, the kinetic energy of any photoelectron is always less than or equal to the maximum kinetic energy $(K \le K_{max})$.

When light is incident on a surface, photoelectrons are emitted. For photoelectrons:

Similar Questions

In the graph given below,if the slope is $4.12 \times 10^{-15} \ V-sec$,then the value of $h$ should be:

Two photons having energies twice and thrice the work function of a metal are incident one after another on the metal surface. Then the ratio of maximum velocities of the photoelectrons emitted in the two cases is respectively:

In the photoelectric effect,if the intensity of light is doubled,then the maximum kinetic energy of the photoelectrons will become:

Light rays consisting of photons with energy $1.8 \ eV$ are incident on a metal surface with a work function of $1.2 \ eV$. What is the stopping potential required to stop the emitted electrons in $eV$?

Two streams of photons,possessing energies equal to twice and ten times the work function of a metal,are incident on the metal surface successively. The ratio of the maximum velocities of the photoelectrons emitted in the two respective cases is $x:y$. The value of $x$ is ...... .

Vedclass Test Series

Exam Paper Generator

Online Exam Module