(1) 60° (2) 30°
(3) 45° (4) 90°
Solution: Answer (1)
From the ray diagram shown in the figure, we can say that
r1 + r2 = A = 30°
r2 = 30° (r1 = 0°)
From Snell’s law,
√3sinr2 = 1 x sine
√3sin30° = sine e = 60°
(1) 60° (2) 30°
(3) 45° (4) 90°
Solution: Answer (1)
From the ray diagram shown in the figure, we can say that
r1 + r2 = A = 30°
r2 = 30° (r1 = 0°)
From Snell’s law,
√3sinr2 = 1 x sine
√3sin30° = sine e = 60°