1.

Find the critical angle for a ray of light at glasswater interface if refractive indices for glass andwater are 1.62 and 1.32 respectivelyl)(Ans : 54° 35')

Answer» <p>sin (c) = 1.32/1.62 </p><p>c = sin⁻¹ 0.8148 = 54° 35' </p>


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