(a) the refractive index changes with the colour of the light leading to dispersion. If the
refractive index for blue light in a certain glass is 1.639 and for red light is 1.621.
calculate the value of sine of refraction for both the rays if both them incident at 500C.
given sin 500C = 0.7660.
(b) what happens when a narrow beam of light (i) monochromatic light and (ii) white
light passes through glass prism?
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Answer:
b
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