White-Dwarf Supernovae Are Good Standard Candles for Distance Measurements for All

question 83

Multiple Choice

White-dwarf supernovae are good standard candles for distance measurements for all the following reasons except which?

• A)All white-dwarf supernovae involve the explosion of stars of nearly the same mass.
• B)White-dwarf supernovae are so bright that they can be detected even in very distant galaxies.
• C)White-dwarf supernovae are common enough that we detect several every year.
• D)White-dwarf supernovae occur only among young and extremely bright stars.
• E)All white-dwarf supernovae have similar light curves,which makes them easy to distinguish from massive-star supernovae.

---

Definitions:

Investor's Return

The profit or loss realized on an investment over a specified period, often expressed as a percentage of the investment’s initial cost.

Stock Price

The cost of purchasing a share of a company's stock, which fluctuates based on supply and demand in the marketplace.

Annual Dividend

The total amount of dividends a company pays out to its shareholders in one fiscal year.

Required Return

The minimum expected return by investors for investing in a non-risk-free asset, taking into account the risk associated with the investment.