The Cosmic Background Radiation Appears Compatible with a Blackbody Source

question 11

Multiple Choice

The cosmic background radiation appears compatible with a blackbody source at what temperature?

• A) 0.0003 K
• B) 3 K
• C) 300 K
• D) 0.03 K

---

Definitions:

Average Investment

The mean value of investments over a certain period of time, often used to measure the performance of an investment portfolio.

Annual Income

The total amount of money earned in one year from all sources before taxes and other deductions.

Average Rate

A representation of the central or typical value of a set of rates, often calculated to find a mean or median value.

Cash Payback Methods

A technique used to estimate the profitability of an investment by calculating the time needed to recoup the initial investment from the cash flows generated by that investment.