When a Beam of Light That Is Traveling in Air $45 ^ { \circ }$

question 25

Multiple Choice

When a beam of light that is traveling in air is reflected by a glass surface, there is

• A) a \(45 ^ { \circ }\) phase change in the reflected beam.
• B) a \(180 ^ { \circ }\) phase change in the reflected beam.
• C) a \(90 ^ { \circ }\) phase change in the reflected beam.
• D) no phase change in the reflected beam.
• E) a \(60 ^ { \circ }\) phase change in the reflected beam.

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Definitions:

After-tax Cash Flow

The net cash flow from business operations or investments after accounting for taxes.

Tax Rate

The rate at which taxes are levied on an individual or a company.

Cost of Capital

The yield a corporation needs to generate from its investment ventures to sustain its market price and appeal to investors.

Rate of Return

The gain or loss on an investment over a specified period, expressed as a percentage.