A Surface Is Coated with a Material Having Index of Refraction

question 24

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 μm
• B) 1.5 μm
• C) 3.0 μm
• D) 4.5 μm

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Definitions:

Asset's Life

The estimated duration over which an asset is expected to be useful in a business before it requires replacement.

Insufficient Capacity

A situation where a firm cannot meet the demand for its products or services due to limitations in its production or service capabilities.

Plant Asset

Long-term tangible assets used in the production and sale of goods and services, such as machinery and buildings.

Productive Demands

The requirement for goods and services based on their use in producing other goods and services.