Question

In photoelectric emission process from a metal of work function `1.8 eV` , the kinetic energy of most energetic electrons is `0.5 eV`. The corresponding stopping potential is
A. `1.3 V`
B. `0.5 V`
C. `2.3 V`
D. `1.8 V`

Answer 1

Correct Answer - B
Stopping potential `= Maximum KE`
`eV = KE_(max)`
So , option `(b)` is correct.