Which of These Was the First Nonvisible Radiation to Be

question 6

Multiple Choice

Which of these was the first nonvisible radiation to be detected from outer space?

• A) X-rays
• B) gamma rays
• C) radio waves
• D) ultraviolet (UV) light

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Definitions:

Obsession

An obsession is a persistent, intrusive, and unwanted thought, urge, or image that causes significant anxiety or distress, often seen in disorders like obsessive-compulsive disorder (OCD).

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with an unconditioned stimulus, evokes a conditioned response.

Unconditioned Stimulus

In classical conditioning, a stimulus that naturally triggers a reflexive response without prior learning.

Agoraphobia

A fear of being in situations in which help might not be available or escape might be difficult or embarrassing.