For What Type of Object Is the Period-Luminosity Relation Used

question 29

Multiple Choice

For what type of object is the period-luminosity relation used for determining distances?

• A) RR Lyrae variables
• B) T Tauri variables
• C) Cepheids
• D) Cataclysmic variables
• E) Planetary nebulae

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Definitions:

Argument

An argument is a value or variable passed to a function, procedure, or program in computing.

#define SQUARE

A preprocessor directive in C and C++ used to define a macro named SQUARE.

Command Line

An interface where users type commands to perform specific tasks in an operating system, as opposed to using a graphical user interface (GUI).

Standardize Arguments

The process of making function arguments follow a consistent format or protocol to ensure interoperability.