The Photosphere Is Cooler Than the Chromosphere

question 98

Multiple Choice

The photosphere is cooler than the chromosphere.How does this influence the spectral characteristics of the Hα line,the prominent red line in the hydrogen spectrum?

• A) This line is an emission line in the chromosphere but an absorption line in the photosphere.
• B) This line is an absorption line in the chromosphere but an emission line in the photosphere.
• C) Both the chromosphere and the photosphere show absorption lines for Hα, but the lines are darker and broader in the chromosphere.
• D) Both the chromosphere and the photosphere show absorption lines for Hα, but the lines are darker and broader in the photosphere.

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Definitions:

Effect Size

A quantitative measure of the magnitude of a phenomenon or the strength of the relationship between variables.

Cramér's V

An association measure for categorical data, providing a value that indicates the strength of association.

Degrees of Freedom

Degrees of freedom refer to the number of independent pieces of information used in the calculation of a statistic, often related to the number of samples minus the number of parameters estimated.

P Value

A statistical measure that indicates whether the results of an experiment are significant, specifically it measures the probability of observing the given results if the null hypothesis were true.