When a light ray enters a rectangular glass slab obliquely from air, what happens to its direction at the first interface?

Question

When a light ray enters a rectangular glass slab obliquely from air, what happens to its direction at the first interface? — Exam MCQ

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C. It bends towards the normal — Atmospheric refraction continuously changes the path of starlight through layers of air with different densities, producing the apparent twinkling of stars.

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A. It bends away from the normal

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B. It travels straight

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D. It gets reflected back

When a light ray enters a rectangular glass slab obliquely from air, what happens to its direction at the first interface?

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