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:

Normal Distribution

A type of continuous probability distribution for a real-valued random variable, characterized by a symmetric bell-shaped curve.

Binomial Distribution

A probability distribution that summarizes the likelihood that a variable will take one of two independent values under a given set of parameters.

Random Variable

A random variable is a variable whose possible values are numerical outcomes of a random phenomenon.

Success Probability

The likelihood or chance of a particular event or outcome happening, often expressed in terms of percentage or decimal.