What Wavelength Monochromatic Source in the Visible Region (390 to 710

question 32

Multiple Choice

What wavelength monochromatic source in the visible region (390 to 710 nm) can be used to constructively reflect off a soap film (n = 1.46) if the film is 214 nm thick?

• A)417 nm
• B)446 nm
• C)406 nm
• D)489 nm
• E)479 nm

---

Definitions:

E-Commerce

Electronic commerce, or e-commerce, encompasses the buying and selling of goods and services using the internet and other electronic systems.

Discount Stores

Retail outlets that sell products at lower prices than traditional department stores or retailers, typically by offering goods that are off-brand or in some way discounted.

Frictionally Unemployed

Individuals temporarily out of work while moving between jobs or looking for their first jobs.

Unemployment Rate

An indicator of the proportion of people in the workforce who are unemployed and searching for work.