The angular dispersion of a prism depends on - JAMB Physics 2019 Question
The angular dispersion of a prism depends on
A
The index of refraction only
B
The angle of incidence as well as the index of refraction
C
The angle of incidence only
D
The thickness of the prism only
correct option: a
The angular dispersion of prism depends on the speed or the wave length of the particular colour. The colour having the highest speed ( red ) undergoes least deviation in its direction whereas the colour having the least speed ( violet ) undergoes most deviation in its direction.
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