# Please solve this ... Q.4. An equilateral prism deviates a ray of light through 23$°$ for two angles of incidence, which differs by 23$°$. The refractive index of prism is a) $\frac{\sqrt{33}}{5}$ b) $\frac{\sqrt{43}}{5}$ c) 1.5 d) $\frac{4}{3}$

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