When a Flower Petal Is 4

question 91

Multiple Choice

When a flower petal is 4.0 cm in front of a converging lens,the inverted image is half the height of the petal.What is the focal length of this lens?

• A)1.3 cm
• B)2.0 cm
• C)4.0 cm
• D)5.3 cm

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Definitions:

Variable Expense

Expenses that change in proportion to the amount of goods produced or the volume of sales, like materials or commissions on sales.

Selling Price

The amount of money for which a product or service is sold to customers, setting the revenue baseline for a business.

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes to covering fixed costs and profit.

Operating Leverage

A financial ratio that measures the degree to which a company can increase operating income by increasing revenue.