A Diffraction Grating Has 2500 Lines/cm $\mu$ M
B) 250 Nm
C) 400 Nm
D) 2

question 48

Multiple Choice

A diffraction grating has 2500 lines/cm. What is the slit separation?

• A) 4.0 \(\mu\)m
• B) 250 nm
• C) 400 nm
• D) 2.5\(\mu\)m

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Definitions:

Discount Factor

A factor employed in the discounted cash flow (DCF) methodology to calculate the current value of anticipated cash flows.

Payback Period

The length of time it takes for an investment to generate cash flows sufficient to recover the initial cost of the investment.

Initial Investment

The initial amount of money invested in a project or business, often used to start or acquire it.

Incremental Annual Revenues

The additional revenue a business generates from making specific changes, such as launching a new product or entering a new market, on an annual basis.