A Concave Mirror Has a Focal Length of 20 Cm

question 40

Multiple Choice

A concave mirror has a focal length of 20 cm. What is the position (in cm) of the object if the image is upright and is two times larger than the object?

• A) 30
• B) 20
• C) 10
• D) 40
• E) 60

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Definitions:

Cost Variances

The difference between expected costs and actual costs, detailed in financial management and accounting to help identify areas of unexpected expense or efficiency.