What evidence can you cite to support the claim that the frequency of light does not change upon reflection?

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Q: What force would be needed to produce an acceleration of 6 m/s² in a ball of mass 12 kg ?

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Q: A. 144 rad/s

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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: