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Civil Engineering MCQs
Q
According to the Snell’s law if an electromagnetic wave is incident in a medium (refractive index n1) on another medium (refractive index m2)________________?
AA. The angle of incidence is equal to the angle of refraction
BB. The angle of refraction r) is given by sin i
CC. Both a. and b.
DD. Neither a. nor b.
Correct Answer:
B. B. The angle of refraction r) is given by sin i