2.90 x 10° nm · K Find the wavelength (in mm) of maximum intensity of the cosmic microwave background radiation observed today. Hint: Use Wien's law, Amay T mm What band of the electromagnetic spectrum is that in? (Examine the figure.) Visible light
2.90 x 10° nm · K Find the wavelength (in mm) of maximum intensity of the cosmic microwave background radiation observed today. Hint: Use Wien's law, Amay T mm What band of the electromagnetic spectrum is that in? (Examine the figure.) Visible light
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![**Educational Webpage Content:**
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**Title: Understanding the Cosmic Microwave Background Radiation**
**Description:**
Explore the properties of the cosmic microwave background radiation (CMBR) and determine its position within the electromagnetic spectrum using Wien's law.
**Content:**
To find the wavelength (in mm) of the maximum intensity of the cosmic microwave background radiation observed today, you can use Wien's Law, given by the formula:
\[ \lambda_{\text{max}} = \frac{2.90 \times 10^6 \, \text{nm} \cdot \text{K}}{T} \]
**Question:**
What band of the electromagnetic spectrum does this wavelength belong to? Refer to the diagram below and examine the figure.
**Diagrams:**
1. **Electromagnetic Spectrum:**
- The diagram shows the range of the electromagnetic spectrum with a focus on visible light divided into short wavelengths (violet, blue) and long wavelengths (red).
- The spectrum is labeled from gamma rays (10^-12 meters) to AM radio waves (10^4 meters).
- Visible light is highlighted from approximately 400 nm (violet) to 700 nm (red).
2. **Opacity of Earth's Atmosphere:**
- This graph illustrates the opacity of Earth's atmosphere to different wavelengths.
- The y-axis represents the opacity level, ranging from opaque to transparent.
- Key "windows" such as the Visual window and Radio window indicate transparent areas within certain wavelength ranges.
**Options:**
Select the correct category for the cosmic microwave background radiation:
- ○ Microwave
- ○ Gamma Ray
- ○ Ultraviolet
**Conclusion:**
Analyze the electromagnetic spectrum and determine which band the CMBR falls into based on its wavelength. This exercise will enhance your understanding of astrophysics and the Earth's atmospheric transmission.
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Transcribed Image Text:**Educational Webpage Content:**
---
**Title: Understanding the Cosmic Microwave Background Radiation**
**Description:**
Explore the properties of the cosmic microwave background radiation (CMBR) and determine its position within the electromagnetic spectrum using Wien's law.
**Content:**
To find the wavelength (in mm) of the maximum intensity of the cosmic microwave background radiation observed today, you can use Wien's Law, given by the formula:
\[ \lambda_{\text{max}} = \frac{2.90 \times 10^6 \, \text{nm} \cdot \text{K}}{T} \]
**Question:**
What band of the electromagnetic spectrum does this wavelength belong to? Refer to the diagram below and examine the figure.
**Diagrams:**
1. **Electromagnetic Spectrum:**
- The diagram shows the range of the electromagnetic spectrum with a focus on visible light divided into short wavelengths (violet, blue) and long wavelengths (red).
- The spectrum is labeled from gamma rays (10^-12 meters) to AM radio waves (10^4 meters).
- Visible light is highlighted from approximately 400 nm (violet) to 700 nm (red).
2. **Opacity of Earth's Atmosphere:**
- This graph illustrates the opacity of Earth's atmosphere to different wavelengths.
- The y-axis represents the opacity level, ranging from opaque to transparent.
- Key "windows" such as the Visual window and Radio window indicate transparent areas within certain wavelength ranges.
**Options:**
Select the correct category for the cosmic microwave background radiation:
- ○ Microwave
- ○ Gamma Ray
- ○ Ultraviolet
**Conclusion:**
Analyze the electromagnetic spectrum and determine which band the CMBR falls into based on its wavelength. This exercise will enhance your understanding of astrophysics and the Earth's atmospheric transmission.
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