The Yerkes Refracting Telescope Has a 1-M Diameter Objective Lens

question 60

Multiple Choice

The Yerkes refracting telescope has a 1-m diameter objective lens of focal length 20 m and an eyepiece of focal length 3.1 cm.What is the magnification of the planet Mars as seen through this telescope?

• A)160
• B)320
• C)650
• D)1 000

---

Definitions:

SNRIs

Serotonin and Norepinephrine Reuptake Inhibitors, a class of antidepressants that work by increasing the levels of serotonin and norepinephrine neurotransmitters in the brain.

SSRIs

Selective Serotonin Reuptake Inhibitors, a class of drugs typically used as antidepressants in the treatment of depression, anxiety disorders, and some other conditions.

Norepinephrine

A neurotransmitter and hormone involved in the body’s fight or flight response; it plays a role in mood regulation.

Serotonin

A neurotransmitter that plays a significant role in mood regulation, digestion, and sleep.