JEE Class main Answered
solve
Asked by sarveshvibrantacademy | 09 May, 2019, 10:16: AM
Expert Answer
Figure shows that light ray is entering normally at face AB of prism, incident at face AC with angle of incidence 60°
and total internal reflection takes place at the glass-liquid boundary.
If μl and μg are refractive indices of glass and liquid respectively, for total internal reflection we have,
1/sin60 = μg / μl or 2/√3 = (3/2) / μl or μl = (3√3)/4
Answered by Thiyagarajan K | 09 May, 2019, 10:47: AM
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