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Class 10 Science Medium Mcq English Medium

At the first surface of a rectangular glass slab (air to glass), the light ray bends

Question
At the first surface of a rectangular glass slab (air to glass), the light ray bends
away from the normal, since air is denser
towards the normal, since it moves from a rarer to a denser medium
at exactly 90 degrees regardless of angle
not at all
Answer
towards the normal, since it moves from a rarer to a denser medium
Detailed Explanation
Since light travels from a rarer medium (air) to a denser medium (glass) at the first surface, it bends towards the normal.
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