A Beam of Light in Air Is Incident at an Angle

question 68

Multiple Choice

A beam of light in air is incident at an angle of 46° to the surface of a rectangular block of clear plastic (n = 1.46) .The light beam first passes through the block and re-emerges from the opposite side into air at what angle to the normal to that surface?

• A) 23°
• B) 59°
• C) 46°
• D) 30°

---

Definitions:

Potential Real GDP

The highest level of gross domestic product (GDP) that could be achieved if an economy operates at full employment.

Aggregate Demand Curve

A graphical representation showing the relationship between the overall price level and the total demand for all goods and services in an economy.

Quantity of Output

The total amount of goods or services produced by a company, sector, or economy within a specific period.

Price Level

The overall average price of all goods and services currently made in the economy.