The threshold frequency of the metal of the cathode in a photoelectric cell is `1xx10^(15)Hz`.
Channel: Doubtnut
Date: 24/05/2020

The threshold frequency of the metal of the cathode in a photoelectric cell is `1xx10^(15)Hz`. When a certain beamm of light is incident on the cathode, it is found that a stopping potential 4.144 V is required to reduce the current to zero. The frequency of the incident radiation is