An Aquarium Contains a 5-Cm Layer of Water (N =

question 18

Multiple Choice

An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461) . If the angle of incidence into the water from the carbon tetrachloride is 20°, what is the angle of refraction into the air?

• A) 20°
• B) 30°
• C) 38°
• D) 69°
• E) 26°

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Definitions:

Cash Flow

The gross amount of cash moving in and out of a commercial venture, significantly altering its liquidity status.

Net Cash Flow

Net cash flow is the measure of financial performance calculated as the difference between cash inflows and cash outflows over a period of time.

Debt/Equity Ratio

A financial tool that determines the equity-debt mix used in the procurement of company assets.

Short-Term Debt

Borrowings of a company due within a year, typically used for immediate operational needs or working capital.