Physics
NULL
Medium
Question
A light ray traveling form rarer to denser medium suffers a phase change of__________________?
A
60°
B
90°
C
180°
✓ Official correct answer
D
45°
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A
60°
No member explanations yet for this option.
B
90°
No member explanations yet for this option.
C
180°
No member explanations yet for this option.
D
45°
No member explanations yet for this option.
Explanation
When light reflects off a medium of higher refractive index (rarer to denser), it undergoes a phase shift of 180° (π radians).
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