What Is the Focal Length of a Contact Lens That

question 74

Multiple Choice

What is the focal length of a contact lens that will allow a person with a near point of 125 cm to read a physics book held 25.0 cm from his eyes?

• A) 10.2 cm
• B) -100 cm
• C) 31.3 cm
• D) 20.8 cm
• E) -31.3 cm

---

Definitions:

Cash Discount

is a reduction in the invoice amount offered to purchasers as an incentive for early payment, improving cash flow.

Interest Rate

The percentage at which interest is paid by a borrower for the use of money that they borrow from a lender.

Gross Amount

The total sum before any deductions are made, such as taxes, discounts, or expenses.

Price Escalation

An increase in the price of products or services over time, often due to factors such as inflation or increased costs of materials.