Q). Draw a diagram to trace the path of a ray light incident at angle of 40 ° on a rectangular glass slab. Write the measure of the angle of refraction and angle of emergence.

Dear student,

From Snell's law,
μ=sinisinr1.5=sin40osinrsinr=sin40o1.5=0.6421.5=0.428r=sin-10.428=25.34oemergence angle will be equal to 40o Regards

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