A Beam of Light in Air Enters a Glass Slab

question 112

Multiple Choice

A beam of light in air enters a glass slab with an index of refraction of 1.40 at an angle of incidence of 30.0°.What is the angle of refraction?

• A)20.9°
• B)47.5°
• C)51.8°
• D)30.0°
• E)14.9°

---

Definitions:

Sales

The transactions involving the exchange of goods or services for money.

Accounts Receivable Turnover

A financial metric that measures how many times a business collects its average accounts receivable amount within a period, indicating the efficiency of credit and collections.

Net Sales

The total revenue from sales transactions after deducting returns, allowances for damaged or missing goods, and any discounts offered.

Allowance Method

An accounting technique used to estimate and account for bad debts, where a portion of receivable accounts is deemed uncollectable.