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A ray of light strikes a thick sheet of glass (n = 1.5) at an angle of 25° with the normal. Find the angle of the refracted ray within the glass with respect to the normal​

Sagot :

Answer:

The in incident angle is 60 degrees. So reflected angle will also be 60 degrees.

To make the perpendicular make the refracted angle 30 degrees.

Then you can use the Snell's law.

Sin angle of incidence/ angle of refraction

Sin60゜/Sin30゜=√3

So the refractive index of the glass is √3

Explanation: