Studying a Spectrum from a Star Can Tell Us a Lot.All

question 41

Multiple Choice

Studying a spectrum from a star can tell us a lot.All of the following statements are true except one.Which statement is not true?

• A)The total amount of light in the spectrum tells us the star's radius.
• B)The peak of the star's thermal emission tells us its temperature: hotter stars peak at shorter (bluer)wavelengths.
• C)We can identify chemical elements present in the star by recognizing patterns of spectral lines that correspond to particular chemicals.
• D)Shifts in the wavelengths of spectral lines compared to the wavelengths of those same lines measured in a laboratory on Earth can tell us the star's speed toward or away from us.

---

Definitions:

Income Statement

A financial document that reports a company's revenues, expenses, and profit over a specific period, showing its financial performance.

Cash Flow

The total amount of money being transferred into and out of a business, affecting its liquidity, operations, and financial health.

Asset Value

The monetary worth attributable to an asset, which could be based on market value, cost, or an appraisal method.

Disregarded

Overlooked or ignored; not given consideration or attention.