A ray of light strikes a flat 200-cm-thick block of glass

A ray of light strikes a flat, 2.00-cm-thick block of glass (n=1.50) at an angle of 30 degrees with respect to the normal.

(a) Find the angle of refraction at the top surface.

(b) Find the angle of incidence at the bottom surface and the refracted angle.

d) Calculate the speed of light in the glass and

e) the time required for the light to pass through the glass block.

(f) Is the travel time through the block affected by the angle of incidence? Explain.

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