Question: The photoelectric threshold frequency of a metal is U . When light of frequency $40$ is incident...

Question

The photoelectric threshold frequency of a metal is U . When light of frequency $40$ is incident on the metal, The maximum kinetic energy of the emitted photoelectron is :

Answer 1

Solution

: the maximum kinetic energy of the emitted electron is given by

$K _ { \max } = h v - \phi _ { 0 } = h ( 4 v ) - h ( v ) = 3 h v$

Question: The photoelectric threshold frequency of a metal is U . When light of frequency \(40\) is incident...

Solution