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When a wave get reflected by a rigid wall it phase changes by π while when it get reflected by a free surface ,no phase change occurs .... Please explain this

When a wave get reflected by a rigid wall it phase changes by π while when it get reflected by a free surface ,no phase change occurs .... Please explain this

Grade:12th pass

1 Answers

Arun
25758 Points
3 years ago
Light undergoes a phase change of 180° (pi radians) uponreflection from a medium that has a higher index of refraction than the one in which the wave is traveling.
because of denser medium

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