The Light-Gathering Power of a Telescope Is Directly Proportional to

question 40

Multiple Choice

The light-gathering power of a telescope is directly proportional to

• A)the diameter of the primary mirror or lens.
• B)the focal length of the primary mirror or lens.
• C)the ratio of the focal lengths of its primary mirror or lens and its eyepiece.
• D)the length of the telescope tube.
• E)the diameter of the eyepiece.

---

Definitions:

Consumers

Individuals or groups who purchase goods and services for personal use and not for manufacture or resale.

Commercial Letter

A formal letter used in the business context for communications between companies, or between a company and its customers, suppliers, or partners.

Written Commitment

A formally documented promise or agreement, often legally binding, outlining specific actions or behaviors.

Open Account Agreement

A payment term arrangement between sellers and buyers where goods are shipped and delivered before payment is due.