When White Light from the Sun Passes Through a Prism

question 216

Multiple Choice

When white light from the sun passes through a prism, it is broken down into bands of light that form colors. The wavelength, , (in nanometers) of some common colors are: Blue: Green: Yellow: Orange: Red: When a fireworks display made of copper is burned, it lets out light with wavelengths, , that satisfy the relationship . Write this inequality without absolute values; find the range of possible values for ; and then, using the preceding list of wavelengths, determine the color of that copper fireworks display.

• A) , Green
• B) , Blue
• C) , Green
• D) , Green
• E) , Blue

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Definitions:

Cost of Capital

The rate of return a company must offer investors to entice them to invest, reflecting the risk of the investment alongside the return.

IRR

An economic indicator, the Internal Rate of Return is utilized to assess the possible profitability of investment opportunities.

NPV

Net Present Value; a method used in capital budgeting to evaluate the profitability of an investment or project, calculated by summing the present values of incoming and outgoing cash flows.

Preferred Stock

A security that pays a constant dividend forever. A hybrid between debt and common equity.