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Draw a ray diagram to show a right angle...

Draw a ray diagram to show a right angled isosceles prism may be used to ''bend the path of light rays by `90^(@)`.
Write the necessary condition in terms of the refractive index of the material of this prism for the ray to bend to `90^(@)`.

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### Step-by-Step Solution **Step 1: Draw the Right-Angled Isosceles Prism** - Begin by sketching a right-angled isosceles prism. Label the angles: one angle is 90 degrees, and the other two angles are each 45 degrees. **Step 2: Indicate the Incident Ray** - Draw an incident ray approaching the prism at an angle. This ray should strike one of the 45-degree angles of the prism. ...
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