Question

State the cause of dispersion of white
light by a glass prism. How did Newton,
using two identical glass prisms, show
that white light is made of seven colours?
Draw a ray diagram to show the path of a
narrow beam of white light, through a
combination of two identical prisms
arranged together in inverted position
with respect to each other, when it is
allowed to fall obliquely on one of the
faces of the first prism of the combination
​

Answer 1

Answer:

White light is a mixture of seven colors, red, orange, yellow, green, blue, indigo and violet. The dispersion of white light occurs because colors of white light travel at different speeds through the glass prism. ... Newton showed that the seven colored lights of the spectrum can be recombined to give back white light.

Explanation:

Answer 2

Answer:

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