Hydrogen Lines Are Weak in the Spectra of Hot O-Type

question 59

Multiple Choice

Hydrogen lines are weak in the spectra of hot O-type stars because ____.

• A) most of the hydrogen has been converted to helium
• B) a good spectrum of these stars is difficult to obtain
• C) these stars have no atmosphere
• D) gravitational pressure pushes all the hydrogen lines out of the visible spectrum
• E) most of the hydrogen is ionized to high energy levels

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Definitions:

Denial

A psychological defense mechanism where an individual refuses to accept reality or facts, effectively ignoring external truths.

Extraversion

A personality trait characterized by outgoingness, high levels of social engagement, and a high level of energy and enthusiasm.

Introversion

How shy and reserved a person is.

Jungian Theory

A theory of psychology that emphasizes the importance of the individual psyche and the personal quest for wholeness, developed by Carl Jung.