Solve the Problem. -A Reflecting Telescope Contains a Mirror Shaped Like a Paraboloid

question 10

Multiple Choice

Solve the problem.
-A reflecting telescope contains a mirror shaped like a paraboloid of revolution. If the mirror is 16 inchesacross at its opening and is 5 feet deep, where will the light be concentrated?

• A)0.3 in. from the vertex
• B)3.2 in. from the vertex
• C)1.6 in. from the vertex
• D)0.8 in. from the vertex

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Definitions:

Price-Earnings Ratio

is a measure of a company's current share price relative to its per-share earnings, used to evaluate if a stock is undervalued or overvalued.

Times Interest Earned

A financial ratio that measures a company's ability to meet its interest payments on outstanding debt, calculated by dividing earnings before interest and taxes (EBIT) by the interest expense.

Debt-To-Equity Ratio

A gauge for understanding the proportionate use of debt and equity by shareholders in the funding mechanisms for a company's assets.

Equity Multiplier

A metric indicating the proportion of a firm's assets funded by owner's equity.