Greenhouse Effect

Detailed Answer

$P_{\text{net}} = \varepsilon \sigma A (T_1^4 - T_2^4)$

$P_{\text{net}} = 0.9 \times 5.67 \times 10^{-8} \times 2.0 \times \left((320)^4 - (300)^4\right)$

$P_{\text{net}} = 0.9 \times 5.67 \times 10^{-8} \times 2.0 \times (1.05 \times 10^{10} - 8.1 \times 10^9)$

$P_{\text{net}} = 0.9 \times 5.67 \times 10^{-8} \times 2.0 \times 2.4 \times 10^9 \approx 245 \, \mathrm{W}$

Question 1

Which of the following is renewable?

A) Uranium
B) Nuclear
C) Geothermal
D) Coal

Answers and Explanations

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Question 2

Which of these are greenhouse gases?

A) CH₄ and CO₂
B) Argon
C) Oxygen and H₂O
D) Nitrogen and N₂O

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Question 3

Solar radiation is incident on a planet. It reflects 40% of the incident radiation, what is the albedo of the planet?

A) 0.4
B) 0
C) 0.6
D) 1

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explanations

Question 4Register

Which range of wavelengths correspond to visible light?

A) 0 - 400nm
B) 400 - 700nm
C) 500 - 800nm
D) Above 700nm

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Question 5Register

Which of these does not cause global warming?

A) Global dimming
B) Solar constant
C) Greenhouse gases
D) Albedo

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Question 6Premium

The albedo of Earth is 0.7. If the incoming intensity is 500 Wm^-2, what is the absorbed intensity?

A) 350 Wm^-2
B) 150 Wm^-2
C) 500 Wm^-2
D) 200 Wm^-2

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Question 7Premium

A spherical blackbody has a surface temperature of $300 \, \mathrm{K}$ and a radius of $0.5 \, \mathrm{m}$ . If the emissivity of the object is $0.85$ , what is the total power radiated by the object?

A) 145 W
B) 1126 W
C) 234 W
D) 470 W

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Question 8Premium

A surface has an albedo of $0.3$ and receives an incident radiation of $1.0 \cdot 10^3 \, \mathrm{W/m^2}$ . How much energy is absorbed per square meter?

A) $0 \, \mathrm{W/m^2}$
B) $700 \, \mathrm{W/m^2}$
C) $300 \, \mathrm{W/m^2}$
D) $1000 \, \mathrm{W/m^2}$

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Question 9Premium

A greenhouse gas absorbs outgoing longwave radiation with a wavelength of $15 \, \mu\mathrm{m}$ . Which part of the electromagnetic spectrum does this wavelength belong to?

A) Infrared
B) Visible Light
C) Ultraviolet
D) Microwave

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Question 10Premium

A surface with an emissivity of $0.9$ is at a temperature of $320 \, \mathrm{K}$ and radiates energy to the surroundings at $300 \, \mathrm{K}$ . The surface area is $2.0 \, \mathrm{m^2}$ . What is the net power radiated?

A) 203 W
B) 325 W
C) 156 W
D) 245 W

Answers and Explanations

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explanations

Anonymous

Anonymous

Greenhouse Effect

Question 1

Which of the following is renewable?

Answers and Explanations

Question 2

Which of these are greenhouse gases?

Answers and Explanations

Question 3

Solar radiation is incident on a planet. It reflects 40% of the incident radiation, what is the albedo of the planet?

Answers and Explanations

Question 4Register

Which range of wavelengths correspond to visible light?

Answers and Explanations

Question 5Register

Which of these does not cause global warming?

Answers and Explanations

Question 6Premium

The albedo of Earth is 0.7. If the incoming intensity is 500 Wm^-2, what is the absorbed intensity?

Answers and Explanations

Question 7Premium

A spherical blackbody has a surface temperature of $300 \, \mathrm{K}$ and a radius of $0.5 \, \mathrm{m}$ . If the emissivity of the object is $0.85$ , what is the total power radiated by the object?

Answers and Explanations

Question 8Premium

A surface has an albedo of $0.3$ and receives an incident radiation of $1.0 \cdot 10^3 \, \mathrm{W/m^2}$ . How much energy is absorbed per square meter?

Answers and Explanations

Question 9Premium

A greenhouse gas absorbs outgoing longwave radiation with a wavelength of $15 \, \mu\mathrm{m}$ . Which part of the electromagnetic spectrum does this wavelength belong to?

Answers and Explanations

Question 10Premium

A surface with an emissivity of $0.9$ is at a temperature of $320 \, \mathrm{K}$ and radiates energy to the surroundings at $300 \, \mathrm{K}$ . The surface area is $2.0 \, \mathrm{m^2}$ . What is the net power radiated?

Answers and Explanations

Anonymous

Greenhouse Effect

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Detailed Answer

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Detailed Answer

Detailed Answer

Detailed Answer

Detailed Answer

Detailed Answer

Question 1

Which of the following is renewable?

Answers and Explanations

Question 2

Which of these are greenhouse gases?

Answers and Explanations

Question 3

Solar radiation is incident on a planet. It reflects 40% of the incident radiation, what is the albedo of the planet?

Answers and Explanations

Question 4Register

Which range of wavelengths correspond to visible light?

Answers and Explanations

Question 5Register

Which of these does not cause global warming?

Answers and Explanations

Question 6Premium

The albedo of Earth is 0.7. If the incoming intensity is 500 Wm-2, what is the absorbed intensity?

Answers and Explanations

Question 7Premium

A spherical blackbody has a surface temperature of 300K300 \, \mathrm{K} and a radius of 0.5m0.5 \, \mathrm{m}. If the emissivity of the object is 0.850.85, what is the total power radiated by the object?

Answers and Explanations

Question 8Premium

A surface has an albedo of 0.3 0.3 and receives an incident radiation of 1.0⋅103W/m2 1.0 \cdot 10^3 \, \mathrm{W/m^2} . How much energy is absorbed per square meter?

Answers and Explanations

Question 9Premium

A greenhouse gas absorbs outgoing longwave radiation with a wavelength of 15μm15 \, \mu\mathrm{m}. Which part of the electromagnetic spectrum does this wavelength belong to?

Answers and Explanations

Question 10Premium

A surface with an emissivity of 0.90.9 is at a temperature of 320K320 \, \mathrm{K} and radiates energy to the surroundings at 300K300 \, \mathrm{K}. The surface area is 2.0m22.0 \, \mathrm{m^2}. What is the net power radiated?

Answers and Explanations

The albedo of Earth is 0.7. If the incoming intensity is 500 Wm^-2, what is the absorbed intensity?

A spherical blackbody has a surface temperature of $300 \, \mathrm{K}$ and a radius of $0.5 \, \mathrm{m}$ . If the emissivity of the object is $0.85$ , what is the total power radiated by the object?

A surface has an albedo of $0.3$ and receives an incident radiation of $1.0 \cdot 10^3 \, \mathrm{W/m^2}$ . How much energy is absorbed per square meter?

A greenhouse gas absorbs outgoing longwave radiation with a wavelength of $15 \, \mu\mathrm{m}$ . Which part of the electromagnetic spectrum does this wavelength belong to?

A surface with an emissivity of $0.9$ is at a temperature of $320 \, \mathrm{K}$ and radiates energy to the surroundings at $300 \, \mathrm{K}$ . The surface area is $2.0 \, \mathrm{m^2}$ . What is the net power radiated?