JAMB - Physics (1978 - No. 41)
The angular dispersion of a prism depends on
the index of refraction only
the angle of incidence as well as the index of refraction
the angle of incidence only
the thickness of the prism
the prism angle
Обяснение
Angle of Incidence: Changing the angle at which light strikes the prism affects the angle of refraction, subsequently influencing the dispersion of the light.
Index of Refraction: The prism's index of refraction determines the extent of light bending, which directly impacts the dispersion of different wavelengths.