3. A narrow beam of light is incident normally on one face of an equilateral prism (refractive index
1.45), the prism being surrounded by water (refractive index 1.33). At what angle the ray of light
emerges out?
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कैलकुलेट द जब मैं सी आप इंडियन सेंचुरी एंड एरिया सरूरनगर
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