If the frequency of incident radiation is kep | vedclass

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

Question

(D) According to Einstein's photoelectric equation,the maximum kinetic energy $(K_{max})$ of emitted photoelectrons is given by $K_{max} = h
u - \Phi

Vedclass · Accepted Answer

remains same.

Vedclass · Answer

(D) According to Einstein's photoelectric equation,the maximum kinetic energy $(K_{max})$ of emitted photoelectrons is given by $K_{max} = h
u - \Phi$,where $h$ is Planck's constant,$
u$ is the frequency of incident radiation,and $\Phi$ is the work function of the metal.Since the stopping potential $(V_{s})$ is related to the maximum kinetic energy by the relation $eV_{s} = K_{max}$,we have $eV_{s} = h
u - \Phi$.This equation shows that the stopping potential $(V_{s})$ depends only on the frequency $(
u)$ of the incident radiation and the work function $(\Phi)$ of the metal surface.Intensity of light affects the number of photons incident per unit area per unit time,which in turn affects the number of photoelectrons emitted (photoelectric current),but it does not affect the maximum kinetic energy of the individual photoelectrons.Therefore,if the frequency $(
u)$ is kept constant,the stopping potential $(V_{s})$ remains the same regardless of changes in the intensity of the incident light.

If the frequency of incident radiation is kept constant and the experiment is repeated by using incident light of different intensities,then the stopping potential $(V_{s})$

Similar Questions

Threshold frequency for a metal is $15 \times 10^{14} \,Hz$. The light of wavelength $6000 \text{ Å}$ falls on the metal surface. Which one of the following statements is correct? [velocity of light, $c = 3 \times 10^{8} \,m/s$]

The value of threshold frequency depends on which of the following factors?

Write the characteristics of the photoelectric effect.

In a photoelectric cell,the conversion of energy takes place from:

The number of photoelectrons emitted varies with which physical quantity?

Vedclass Test Series

Exam Paper Generator

Online Exam Module