The refractive index of material of a prism of angles \( 45^{\circ} \), \( -45^{\circ} \), and \...

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The refractive index of material of a prism of angles \( 45^{\circ} \), \( -45^{\circ} \), and \( -90^{\circ} \) is \( 1.5 \). The path of the ray of light incident normally on the hypotenuse side is shown in
(2)
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