An Ideal Blackbody in Physics and Astronomy Is an Object

question 175

Multiple Choice

An ideal blackbody in physics and astronomy is an object that

• A) emits only infrared light and hence appears black to the eye.
• B) does not emit or absorb any electromagnetic radiation.
• C) absorbs and emits electromagnetic radiation at all wavelengths.
• D) absorbs all electromagnetic radiation but emits none.

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Definitions:

Cash Inflows

Money received by a business from its operations, financing, or investing activities.

Net Present Value

The divergence of cash inflows’ current worth from cash outflows’ present value during a defined duration.

Discount Rate

The interest rate used to discount future cash flows of a financial instrument to present value, reflecting the time value of money and investment risk.

Net Present Value

A calculation used to determine the value of an investment by discounting future cash flows to their present value to assess its profitability.