<p>(a) All the photo electrons do not eject with the same kinetic energy when monochromatic light is incident on a metal surface.</p>

<p>(b) The saturation current in case (a) is different for different intensity.</p>

<p>(c) If one goes on increasing the wavelength of light incident on a metal surface, keeping its intensity constant, emission of photo electrons stops at a certain wavelength for this metal.&nbsp;</p>