Write TRUE if the statement is correct and FALSE if it is not.  a. Light needs a medium through which it can travel. b. Fireworks show how light travels faster than sound. c. Light travel s faster in glass than it does in a vacuum. d. Light travels in a straight line when it passes through a single medium. e. Light rays could not be blocked and they could pass through all types of materials since they travel on a straight line.

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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: