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A student passed a ray of Ight from all through a rectangular glass prism, and obtained the observations shown below incident From these observations. the student formed the following interpretations: The incident ray and the emergent ray are parallel . The ray gassing from air to glass is refracted toward the normal. The ray passing from the glass to the air is refracted away from the hermal Angles of refraction are always smaller than angles of incidence The incident ray and the emergent ray he on the same straight line. 23. Which of the student's interpretations are valid