Which of the following statements is correct | vedclass

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

Question

(C) The kinetic energy $(KE)$ of photoelectrons is given by the equation: $KE = h
u - h
u_0$.When the incident frequency $
u > 
u_0$,then $KE > 0$

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(C) The kinetic energy $(KE)$ of photoelectrons is given by the equation: $KE = h
u - h
u_0$.When the incident frequency $
u > 
u_0$,then $KE > 0$. Thus,statement $3$ is correct.Here,$
u$ is the frequency of incident light and $
u_0$ is the threshold frequency.Analyzing other statements:$1$. The number of photoelectrons ejected is directly proportional to the intensity of light,not inversely.$2$. When $
u $4$. When $
u = 
u_0$,$KE = 0$,meaning the electrons are just ejected but have no kinetic energy to move away from the surface.

Similar Questions

Splitting of spectral lines under the influence of a magnetic field is called:

Work functions of four metals $M_1, M_2, M_3$ and $M_4$ are $4.8, 4.3, 4.75$ and $3.75 \ eV$ respectively. The metals which do not show photoelectric effect when light of wavelength $310 \ nm$ falls on the metals are

The radiation with maximum frequency is

In the photoelectric effect,the saturation photocurrent:

If light waves pass through a $Nicol$ prism,then all the oscillations occur only in one plane. Such a beam of light is called:

Vedclass Test Series

Exam Paper Generator

Online Exam Module