A light ray strikes a hexagonal ice crystal floating in the air at a 30° angle to one face, as shown below. The hexagonal faces of the crystal are perpendicular to the plane of the page. All the rays shown are in the plane of the page, and nice = 1.30. Which outgoing ray is the correct one? 
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Publications intended to provide guidance on personal improvement and to solve personal problems.
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A professional specializing in providing mental health services for individuals, families, and groups, addressing psychological, social, and environmental issues.
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