Question

. Explain the first law of Reflaxation​

Answer 1

Answer:

First law of reflection: According to the first law, the incident ray, reflected ray and normal, all lie in the same plane.

Explanation:

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Answer 2

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In the physical sciences, relaxation usually means the return of a perturbed system into equilibrium. ... The simplest theoretical description of relaxation as function of time t is an exponential law exp(-t/τ) (exponential decay).