HELP ME PLEASE!!! A laser beam is incident on a 45°–45°–90° prism perpendicular to one of its faces?

The sent ray that exits the hypotenuse associated with the prism tends to make an angle of θ = 24.9° with all the path associated with the event ray. Discover the list of refraction associated with the prism.

Solution … n = 1.33 …
Perpendicular to at least one associated with the faces associated with the cup prism, the laserlight going from
atmosphere to cup is certainly not refracted … but event in the hypotenuse associated with the prism, the
perspective of occurrence ϕ is equivalent to 45° … appearing through the prism through
hypotenuse, the perspective of refraction is ϕ + θ = 45° + 24.9° = 69.9° … in accordance
to Snell’s legislation … n₁ sin 45° = n₂ sin 69.9° —> n₁ = [ n₂ sin 69.9° ] / sin 45° …
… n₁ = [ ( 1.00 ) sin 69.9° ] / sin 45° = 1.3281 … or … n₁ = 1.33 …

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