1. Tardigrade
  2. Question
  3. Physics
  4. In photo electric effect, the slope of the straight line graph between stopping potential and frequency of the incident light gives the ratio of Planck's constant to

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. In photo electric effect, the slope of the straight line graph between stopping potential and frequency of the incident light gives the ratio of Planck's constant to

Dual Nature of Radiation and Matter

Solution:

$hv = hv _{0}+ K \cdot E$
at stopping potential $K . E = eV$
$\Rightarrow hv = hv _{0}+ eV$
$V =\frac{ h }{ e }\left( v - v _{0}\right)$
The slope of graph b/w stopping potential and frequency is $\frac{ h }{ e }$, where $e$ is charge of electron.