What Is a Pulsar

question 8

Multiple Choice

What is a pulsar?

• A) very hot material orbiting a black hole
• B) a Cepheid variable star with a period of a few days
• C) a pulsating white dwarf, fluctuating rapidly in brightness
• D) a rapidly rotating neutron star, producing beams of radio energy and occasionally of X-rays and visible light

---

Definitions:

Cocktail-Party Effect

The ability to focus one's auditory attention on a particular stimulus while filtering out a range of other stimuli, much like tuning into a single conversation in a noisy environment.

Selection

The process of choosing or making a decision from a set of alternatives, often used in contexts like recruitment, purchasing, or research methodology.

Attention

The act of concentrating on a particular object, task, or activity, while ignoring other stimuli.

Word Fragment

A word fragment is a piece of a word, often used in cognitive psychology experiments to study perception and memory.