As we will see, the wave model could satisfactorily explain
the phenomena of reflection and refraction; however, it predicted that on
refraction if the wave bends towards the normal then the speed of light
would be less in the second medium This is in contradiction to the
prediction made by using the corpuscular model of light It was much
later confirmed by experiments where it was shown that the speed of
light in water is less than the speed in air confirming the prediction of the
wave model; Foucault carried out this experiment in 1850 The wave theory was not readily accepted primarily because of
Newton’s authority and also because light could travel through vacuum
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and it was felt that a wave would always require a medium to propagate
from one point to the other