A Phase Shift of 180º Occurs When a Light Wave

question 76

Multiple Choice

A phase shift of 180º occurs when a light wave

• A) is transmitted through a boundary surface into a medium that is more dense than the medium from which the wave came.
• B) is transmitted through a boundary surface into a medium that is less dense than the medium from which the wave came.
• C) reflects from the boundary surface of a medium that is less dense than the medium in which the wave is traveling.
• D) reflects from the boundary surface of a medium that is denser than the medium in which the wave is traveling.
• E) Both c and d are correct.

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