When the frequency fo light incident an a metallic plate is doubled , the 1KE` of the emitted photoelectrons will be :

When the frequency of light incident on a metallic plate is doubled the KE of the emitted photoelectron will be

The frequency of incident light falling on a photosensitive metal plate is doubled, the KE of the emitted photoelectrons is

The frequency of incident light falling on a photosensitive metal plate is doubled, the KE of the emitted photoelectrons is

The frequency of incident light falling on a photosensitive metal plate is doubled, the K.E of the emitted photo-electrons is

The photoelectric threshold frequency of a metal is v_0. When ligth of frequency 3v_0 is incident on the metal, the maximum kinetic energy of emitted photoelectrons will be