Star a Is Four Times as Luminous as Star B

question 65

Multiple Choice

Star A is four times as luminous as star B.Star B's spectrum peaks at 300 nm,while star A's spectrum peaks at 150 nm.How large is the radius of star A compared to star B?

• A) 1/2 as large
• B) 1/4 as large
• C) twice as large
• D) four times as large

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Definitions:

Earnings Per Share

A financial ratio that measures the amount of a company's profit allocated to each outstanding share of common stock, serving as an indicator of the company's profitability.

Public Company

A company whose ownership is distributed amongst general public shareholders through the trading of shares publicly on the stock exchange.

Net Income

What a company ultimately earns in profit after removing the costs of taxes and expenses from its revenue.

Stockholders' Equity

The ownership interest of shareholders in a corporation, measured as the company's total assets minus its total liabilities.