The Objective of an Astronomical Telescope Has a Focal Length

question 63

Multiple Choice

The objective of an astronomical telescope has a focal length of 900 mm. The telescope has eyepieces of focal lengths 20 mm, 15 mm, and 10 mm. What is the largest magnification for this telescope?

• A) 920
• B) 900
• C) 880
• D) 90
• E) 60

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Definitions:

Cerebellum

A brain structure responsible for coordinating voluntary movements, balance, and fine-tuning motor activities.

Rostral

In anatomy, referring to a position toward the front end of the body in quadrupeds or the bottom of the head in humans.

Caudal

At or near the rear or the tail end of an organism.

CNS

The central nervous system, composed of the brain and spinal cord, which processes and sends out neural signals.