A Particular Spectrograph, Used by an Astronomer to Disperse Light

question 100

Multiple Choice

A particular spectrograph, used by an astronomer to disperse light into its colors, contains a piece of glass that has been ruled with thousands of closely spaced, parallel lines. What is the name of this piece of glass?

• A) interferometer
• B) CCD array
• C) diffraction grating
• D) prism

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Definitions:

Interference Theory

A theory that explains forgetting in the human memory as the result of competing information that interferes with the retention or retrieval of other information.

Replacement

The act of substituting one thing for another, whether it's a physical object, a person in a job role, or a concept.

Cue-dependent

Refers to the phenomenon where recall of information is improved when retrieval occurs in the same context as the initial learning.

Decay

The process by which information is lost from memory over time, typically due to the passage of time and lack of use.