The Lens of a Slide Projector Has a Focal Length

question 104

Multiple Choice

The lens of a slide projector has a focal length of +12.0 cm.A slide 12.6 cm to the left of the lens forms the object for the lens.The screen should be placed

• A)25 cm to the left of the lens.
• B)25 cm to the right of the lens.
• C)250 cm to the left of the lens.
• D)250 cm to the right of the lens.
• E)390 cm to the right of the lens.

---

Definitions:

Straight-Line Method

An accounting method of depreciation where an asset's cost is reduced equally over its useful life.

Project Life

The duration over which a project is expected to operate or be productive before it is decommissioned or ends.

Book Value

The net value of a company's assets found on its balance sheet, calculated as total assets minus intangible assets (patents, goodwill) and liabilities.

Net Income

The amount of profit left after all expenses, taxes, and costs have been subtracted from total revenue.