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Aray of light falls on one side of a pri...

Aray of light falls on one side of a prism whose refracting angle is `75^@`. Find the angle of incidence in order that the emergent ray may just graze the other side, (`mu = sqrt(2)`)

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To solve the problem, we need to find the angle of incidence (I) for a ray of light falling on a prism with a refracting angle of \(75^\circ\) such that the emergent ray just grazes the other side of the prism. The refractive index (\(\mu\)) of the prism is given as \(\sqrt{2}\). ### Step-by-Step Solution: 1. **Understanding the Geometry of the Prism:** - The prism has a refracting angle \(A = 75^\circ\). - The ray of light enters the prism and refracts at the first surface (AB) and exits at the second surface (AC). - The emergent ray just grazing the other side means it exits at an angle of \(90^\circ\) to the normal at surface AC. ...
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