All of the Following Observations Are Real

question 10

Multiple Choice

All of the following observations are real.Which one does not support the theory that active galactic nuclei are powered by accretion disks around massive black holes?

• A)X-ray emission from active galactic nuclei can vary significantly in times as short as a few days.
• B)The total luminosity of an active galactic nucleus can be as high as about 10 billion times that of the Sun.
• C)Spectra of active galactic nuclei show that clouds of gas are orbiting a central object at very high speed.
• D)The most luminous active galactic nuclei have huge redshifts.

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Definitions:

Biological Theories

Concepts that explain phenomena or behavior strictly in terms of biological processes and heredity.

John Watson

An American psychologist and one of the founders of behaviorism, known for his theory that human behavior can be studied and modified through conditioning.

Hypnosis

A trance-like state of focused attention, reduced peripheral awareness, and an enhanced capacity to respond to suggestion, used for therapeutic purposes.

Symptoms Of Hysteria

Manifestations typically associated with an outdated diagnosis, now more likely referred to as conversion disorder, which include uncontrollable emotional outbreaks and disturbances in physical functioning.