Light from an Astronomical Source Is Found to Be Shifted $\times$

question 59

Multiple Choice

Light from an astronomical source is found to be shifted to a one percent lower frequency than had the source been at rest.What radial velocity could cause such a shift?

• A) 3.0 \(\times\) 10⁷ m/s moving away from the observer
• B) 3.0 \(\times\) 10⁶ m/s moving away from the observer
• C) 3.0 \(\times\) 10⁶ m/s moving toward the observer
• D) 1.5 \(\times\) 10⁶ m/s moving toward the observer
• E) 1.5 \(\times\) 10⁶ m/s moving away from the observer

---

Definitions:

Raphe Nuclei

A cluster of nuclei found in the brainstem involved in the release of serotonin and affecting mood, sleep, and arousal.

Serotonin

A neurotransmitter that plays a key role in mood regulation, digestion, sleep, and other important bodily functions.

Brain

The organ located in the head of humans and other vertebrates that is the center of the nervous system responsible for interpreting sensory information, and coordinating and influencing bodily actions and functions.

Introjection

A psychological process by which an individual incorporates the ideas, attitudes, or objects of others into their own psyche.