A Surface Is Coated with a Material Having Index of Refraction

question 72

Multiple Choice

A surface is coated with a material having index of refraction 1.50. If light in air has a wavelength of 450 nm and is normally incident on this surface, and it is found through interference effects with this light that the surface is 15 wavelengths thick, which of the following is the thickness of the surface?

• A) 6.8 \(\mu\)m
• B) 1.5 \(\mu\)m
• C) 3.0 \(\mu\)m
• D) 4.5 \(\mu\)m

---

Definitions:

Specialized Resources

Resources uniquely suited or trained to perform specific tasks or functions within an economic system, enhancing efficiency and productivity.

Opportunity Cost

The financial loss associated with rejecting the subsequent optimal choice in any decision-making scenario.

Specialized Tools

Equipment or instruments designed for specific tasks or professions, enhancing efficiency and precision.

Landscaping Firm

A company that specializes in designing, implementing, and maintaining outdoor spaces, gardens, and other landscape features.