In the Figure, a Beam of Light from an Underwater

question 79

Multiple Choice

In the figure, a beam of light from an underwater source is incident on a layer of carbon disulfide and the glass bottom of the container. Some of the refracted and reflected rays are shown in the diagram. For the rays shown, the interface at which the reflected light changes phase is

• A) 1 only.
• B) 2 only.
• C) 3 only.
• D) 1 and 2.
• E) 2 and 3.

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