In Fig. 33-57, a ray of light is perpendicular to the face $a b$ of a glass prism $(n=1.52)$. Find the largest value for the angle $\phi$ so that the ray is totally reflected at face $a c$ if the prism is immersed (a) in air and (b) in water.
Added by Peter S.
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The ray of light enters the prism at face $ab$ perpendicular to the surface, so it does not refract at this point. Show more…
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In Fig. $33-57$, a ray of light is perpendicular to the face $a b$ of a glass prism $(n=1.52) .$ Find the largest value for the angle $\phi$ so that the ray is totally reflected at face $a c$ if the prism is immersed (a) in air and (b) in water.
In Fig. 33-40, a ray of light is perpendicular to the face $a b$ of a glass prism $(n=1.81)$. Find the largest value for the angle $\phi$ so that the ray is totally reflected at face $a c$ if the prism is immersed (a) in air and (b) in water.
Light is incident along the normal on face $AB$ of a glass prism of refractive index 1.52, as shown in $\textbf{Fig. E33.21}$. Find the largest value the angle a can have without any light refracted out of the prism at face $AC$ if (a) the prism is immersed in air and (b) the prism is immersed in water.
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