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When a ray of light travels normal to the given surface, then the angle of
Physics
Refraction of Light at Plane Surfaces
Question
Updated
19 Aug 2026
When a ray of light travels normal to the given surface, then the angle of refraction is ______.
A
Choose Your Answer
A
\(180^\circ\)
B
\(0^\circ\)
C
\(90^\circ\)
D
\(45^\circ\)
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