The phenomena of interference, diffraction and polarisation were
explained in a natural and satisfactory way by the wave picture of light According to this picture, light is an electromagnetic wave consisting  of
electric and magnetic fields with continuous distribution of energy over
the region of space over which the wave is extended Let us now see if this
Rationalised 2023-24
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Dual Nature of Radiation
and Matter
wave picture of light can explain the observations on photoelectric
emission given in the previous section According to the wave picture of light, the free electrons at the surface
of the metal (over which the beam of radiation falls) absorb the radiant
energy continuously