Sunlight is incident on a surface of glass plate at glancing angle of 40°. The reflection ray is found to be completely plane polarised. Determine the R.I. of glass.
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![Sunlight is incident on a surface of
glass plate at glancing angle of 40°. The
reflection ray is found to be completely plane
polarised. Determine the R.I. of glass.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F647fcea2-8f18-4c36-ab8d-62357d0401da%2F5663ed0b-eed6-4070-b56e-01bd0243f06b%2Fxs9z9ak_processed.jpeg&w=3840&q=75)
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