A Concave Mirror Has a Focal Length of 20 Cm

question 43

Multiple Choice

A concave mirror has a focal length of 20 cm. What is the magnification if the object and image distances are 10 cm and −20 cm respectively?

• A) 1
• B) 2
• C) 1/2
• D) 1/4
• E) −1/2

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Definitions:

Operating Cycle

The duration of time it takes for a company to purchase inventory, sell it to customers, and collect the cash from these sales.

Fiscal Year

A twelve-month period used for accounting purposes and preparing financial statements, which may or may not align with the calendar year.

Owner's Drawings

A withdrawal by the owner of a business for personal use, reducing the equity in the business.

Income Summary

An account used during the closing process that aggregates all income and expense accounts to determine the net profit or loss.