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Question: A ray of light strikes a flat, 2-cm thick block of glass(n=1.5) at an angle of 30 degrees with respect to the normal. find the angle of refraction at the top surface. find the angle of incidence at the bottom surface and the refracted ange. find the lateral distance by which the ight beam is shifted. calculate the speed of the light in the glass and the time required for the light to pass through the glass block. Is the travel time through the block affected by the ange of incidence? explain

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