Two light beams are incident normal to one surface of a triangular prism with refractive index n = 1.4 surrounded by air. What is the value of the angle between the two emerging beams, shown as a in the figure? %3D

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Two light beams are incident normal to one surface
of a triangular prism with refractive index n = 1.4
surrounded by air. What is the value of the angle
between the two emerging beams, shown as a in
the figure?
d
a
90°
d
45°
O 70.4°
73.7°
O 61.8°
60.0°
O 65.8°
.....
......
Transcribed Image Text:Two light beams are incident normal to one surface of a triangular prism with refractive index n = 1.4 surrounded by air. What is the value of the angle between the two emerging beams, shown as a in the figure? d a 90° d 45° O 70.4° 73.7° O 61.8° 60.0° O 65.8° ..... ......
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