1.

The_angle_of_incidence_of_a_wave_of_a_wave_with_angle_of_transmission_45_degree_and_the_refractive_indices_of_the_two_media_given_by_2_and_1.3_is$

A. 41.68
B. 61.86
C. 12.23
D. 27.89
Answer» B. 61.86


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