A Standard Candle Is _

question 114

Multiple Choice

A standard candle is _ .

• A)another name for a main- sequence star
• B)another name for a barred- spiral galaxy
• C)a light source of known luminosity
• D)a 7- cm- long wax candle

---

Definitions:

External Acoustic Meatus

The ear canal leading from the outer ear to the eardrum.

Oval Window

A membrane-covered opening that leads from the middle ear to the vestibule of the inner ear, where sound vibrations are transmitted.

Auditory Receptors

Receptor cells located in the cochlea of the inner ear that detect sound waves and convert them into neural signals for the brain to interpret.

Stapes

The smallest bone in the human body, located in the middle ear, playing a crucial role in the conduction of sound vibrations to the inner ear.