9.21 At what angle should a ray of light be incident on the face of a prism of…

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Geometric Optics · Geometric Optics

Problem

9.21 At what angle should a ray of light be incident on the face of a prism of refracting angle

60^{\circ}

so that it just suffers total internal reflection at the other face? The refractive index of the material of the prism is 1.524 .