For Which Type of Binary System Are Astronomers Able to Resolve

question 1

Multiple Choice

For which type of binary system are astronomers able to resolve each of the two stars individually?

• A) eclipsing binary
• B) spectroscopic binary
• C) visual binary
• D) binaries where the two stars have the same mass
• E) binaries where the two stars have the same luminosity

---

Definitions:

Real Wage

The purchasing power of wages, defined by how much goods and services the wages can buy, adjusting for the level of prices in an economy.

Cyclical Unemployment

This type of unemployment occurs due to economic downturns or recessions, reflecting a lack of demand for goods and services in the market.

Frictional Unemployment

Unemployment that occurs when workers are between jobs or are entering the workforce for the first time; it is often seen as a natural and necessary part of a healthy economy.

Seasonal Unemployment

This refers to the phenomenon where individuals temporarily lose their jobs due to changes in the season, common in industries like agriculture or tourism.