2.After a rainstorm, a rainbow may appear in the sky. Which statement explains this observation? (answer only) a. Raindrops act as prisms separating sunlight into colors. b. The white clouds are actually prisms composed of different colors. c. The colors of the rainbow come from raindrops in the atmosphere. d. When the sunlight is reflected by the ground towards the clouds, it separates into different colors 3.Where does light travel fastest? (answer only) a. air b. vacuum c. glass d. water

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A: Required : What colour of pigment are seen when it is capable of absorbing R light wave.

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A:

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Dispersion of White Light

Snell’s law is a formula that gives a relation between the angle of incidence and angle of refraction and is given as: