According to Kirchhoff's Laws, the Continuous Spectrum of Light from a Hot

question 113

Multiple Choice

According to Kirchhoff's laws, the continuous spectrum of light from a hot star, after passing through a cool gas cloud,

• A) is enhanced at infrared wavelengths by a continuous spectrum emitted by the cool gas.
• B) contains additional emission lines from energy emitted by the atoms of the cool gas.
• C) shows absorption features where light has been absorbed by the atoms of the cool gas.
• D) is unaffected because atoms in the gas cloud are too cool to absorb or emit energy.

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Definitions:

NPV

Net Present Value, a calculation that compares the value of all cash inflows and outflows of a project or investment using a discount rate.

Cash Inflows

The movement of money into a business or project, typically from operations, financing, or investing activities.

IRR

Internal Rate of Return; a financial metric used to estimate the profitability of potential investments, calculating the discount rate that makes the net present value of all cash flows equal to zero.

NPV

Net Present Value is a method used to evaluate the attractiveness of an investment or project by calculating the present value of expected future cash flows using a specific discount rate.