Civil Engineering - Elements of Remote Sensing - Discussion
Discussion Forum : Elements of Remote Sensing - Section 2 (Q.No. 47)
47.
According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n1) on an other medium (refractive index m2);
the angle of incidence is equal to the angle of refraction
the angle of refraction (θr) is given by 
Both (a) and (b)
neither (a) nor (b)
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