Two Convex Thin Lenses with Focal Lengths 10

question 23

Multiple Choice

Two convex thin lenses with focal lengths 10.0 cm and 20.0 cm are aligned on a common axis,running left to right,the 10-cm lens being on the left.A distance of 20.0 cm separates the lenses.An object is located at a distance of 15.0 cm to the left of the 10-cm lens.Where will the final image appear as measured from the 20-cm lens?

• A)-13.3 cm
• B)-6.67 cm
• C)+6.67 cm
• D)+13.3 cm

---

Definitions:

Economic Profit

The difference between total revenue and total costs, including both explicit and implicit costs, indicating the extent to which a firm has exceeded the break-even point.

Total Revenues

The total amount of money received by a company from its sales of goods or services before any expenses are subtracted.

Variable Costs

Costs that vary directly with the level of production or sales, like raw materials and labor.