What Is a Standard Candle

question 20

Multiple Choice

What is a standard candle?

• A) an object for which we are likely to know its true luminosity
• B) an object for which we can easily measure its apparent brightness
• C) a class of objects that we know all have exactly the same luminosity
• D) any star for which we know its exact apparent brightness
• E) a unit of luminosity used by astronomers

---

Definitions:

Canceled

Terminated or annulled before completion; can refer to appointments, events, subscriptions, or other planned activities.

Double-Booking

The practice of scheduling two or more appointments, reservations, or engagements at the same time period, leading to conflicts.

Modified Wave

A scheduling method whereby appointments are made at the beginning of each hour, allowing a healthcare provider to see patients at the start of the hour followed by walk-ins or unscheduled appointments.

Wave

Patients are scheduled during the first 30 minutes of each hour, leaving the last 30 minutes for same-day appointments.