Figure shows a mixture of blue, green and red coloured rays incident normally on a right angled prism. The critical angles of the material of the prism for red, green and blue are and
respectively. The arrangement will separate
Text Solution
Verified by ExpertsThe correct answer is:
C
: The angle of incidence for and
is
. For blue and green, the angle of incidence is greater than the critical angle. Blue and green will be reflected by total internal reflection. Red will be refracted.
and
will not be separated but they are separated from red which is refracted.
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