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A ray of light is incident on a prism of refractive index as shown in the figure.
The angle by which the second identical prism must be rotated so that the final ray suffers net minimum deviation is
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The angle by which the second identical prism must be rotated so that the final ray suffers net minimum deviation is
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The correct answer is:
In the position shown net deviation suffered by the ray of light should be minimum. Therefore, the second prism should be rotated by ( anticlockwise).
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