If 550-Nm Light Is Incident Normally on a Diffraction Grating

question 38

Multiple Choice

If 550-nm light is incident normally on a diffraction grating and exactly 6 lines are produced, the ruling separation must be:

• A)between 2.75*10^{- 6} m and 5.50 *0 ^{- 6} 1 m
• B)between 5.50 *10sup>-⁶ m and 1.10 *10^-5 m
• C)between 3.30 *10^-6 m and 3.85 *10^-6 m
• D)between 3.85 *10^-6 m and 4.40 *10^-6 m
• E)between 2.20 *10^-6 m and 3.30 *10^-6 m

---

Definitions:

Inflation Rate

The percentage increase in the price level of goods and services in an economy over a period of time, usually a year.

Usury Laws

Regulations governing the amount of interest that can be charged on a loan, designed to protect consumers from excessive rates.

Price Floors

A government- or group-imposed minimum price set above the equilibrium price, preventing market prices from dropping below it.

Profits

The financial gain realized when the amount of revenue gained from a business activity exceeds the expenses, costs, and taxes involved in sustaining the activity.