The Current Temperature of the Cosmic Background Radiation of 2 $\mu$

question 66

Multiple Choice

The current temperature of the cosmic background radiation of 2.73 K means that the peak of its spectrum occurs at a wavelength of

• A) 1 \(\mu\)m.
• B) 10 \(\mu\)m.
• C) 100 \(\mu\)m.
• D) 1,000 \(\mu\)m.

---

Definitions:

Urgent

Requiring immediate attention.

Abdominal Thrust

A first aid procedure used to treat upper airway obstructions (or choking) by exerting pressure on the bottom of the diaphragm.

Obstructed Airway

A blockage in the passage through which air enters and leaves the lungs, which can be life-threatening.

Adults

refers to individuals who have reached maturity in terms of age, typically considered to be 18 years and older.