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

question 1

Multiple Choice

The Yerkes refracting telescope has a 1-m diameter objective lens of focal length 20 m and an eyepiece of focal length 2.0 cm.What is the magnification of the planet Mars as seen through this telescope?

• A) 800
• B) 1000
• C) 400
• D) 200

---

Definitions:

Salvage Value

The calculated future selling price of an asset at the end of its period of benefit.

Depreciation Expense

Dividing the expenditure associated with a tangible asset over its operational life.

Depreciation

The systematic allocation of the cost of a tangible asset over its useful life, reflecting its decrease in value due to use, wear and tear, or obsolescence.

Depletion

The allocation of the cost of natural resources over their productive life, commonly used in industries like mining and forestry.