Two Converging Lenses, the First with Focal Length 10

question 40

Multiple Choice

Two converging lenses, the first with focal length 10.0 cm and the second with focal length 20.0 cm, are separated by 40.0 cm. An object, 3.00 cm in height, is placed 30.0 cm in front of the first lens. Where is the final image formed?

• A) 11.1 cm after the second lens
• B) 100 cm after the second lens
• C) 45.0 cm after the second lens
• D) 5.00 cm after the second lens
• E) 5.00 cm before the second lens

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Definitions:

Average Cost Formula

A mathematical calculation used to determine the average cost per unit of inventory by dividing the total cost of goods by the total number of units available.

Ending Inventory

The total value of goods available for sale at the end of an accounting period, calculated by adding purchases to beginning inventory and subtracting cost of goods sold.

Perpetual Inventory System

An inventory management method that records the sale or purchase of inventory immediately through the use of computerized point-of-sale systems and enterprise asset management software.

Average Unit Cost

A costing method that calculates the cost per unit by dividing the total cost by the total number of units available for sale.