Question

Our Sun's surface is a blackbody with surface temperature 5800K. It emits most strongly at a...

Our Sun's surface is a blackbody with surface temperature 5800K. It emits most strongly at a wavelength of 500nm. What is the spectral emittance at these values? Use Planck's radiation law

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Assuming that your surface temperature is 97.7 F and that you are an ideal blackbody radiator...
Assuming that your surface temperature is 97.7 F and that you are an ideal blackbody radiator (you are close), find (a) the wavelength at which your spectral radiancy is maximum, (b) the power at which you emit thermal radiation in a wavelength range of 1.00 nm at that wavelength, from a surface area of 4.10 cm2, and (c) the corresponding rate at which you emit photons from that area. Using a wavelength of 500 nm (in the visible range), (d)...
Assuming that my black cat Gabby is also a perfect blackbody that emits radiation with a...
Assuming that my black cat Gabby is also a perfect blackbody that emits radiation with a wavelength of maximum emission of 1.37x10^-5 m, determine Gabby's approximate temperature (in kelvin and in degrees Celsius). Recall that Tk=Tc+273. What type of electromagnetic radiation would this be?
Blackbody Radiation, Wein’s Law, and BrightnessIt is believed that some white dwarf stars could host planets....
Blackbody Radiation, Wein’s Law, and BrightnessIt is believed that some white dwarf stars could host planets. (a) If the white dwarf has a luminosity ofLW D= 10−2L, how far from it must one of its’ planets besuch that the planet receives the same flux as the Earth does from our Sun (FEarth= 1360W/m2)? (b) If this white dwarf has a surface temperature ofTeff= 15000 K, then what is the peak wavelengthof its’ blackbody radiation? (c) Sketch the blackbody radiation curve...
(5 pts.) The most intense light from the sun (an approximate ideal blackbody), with a surface...
(5 pts.) The most intense light from the sun (an approximate ideal blackbody), with a surface temperature of 5800 K, is green light with a wavelength – the peak wavelength- of l = 500 nm. What is the frequency of the most intense light coming from an ideal blackbody with a temperature of 2900 K? 3.00 ×1014 Hz 6.00 ×1014 Hz 9.00 ×1014 Hz 1.20 ×1015 Hz
Assuming blackbody emission, find the wavelength of peak radiation from the following objects: a) surface of...
Assuming blackbody emission, find the wavelength of peak radiation from the following objects: a) surface of the sun at 5778 K, b) boiling water at 100 degrees C, c) helium at 4 K d) the universe at T=2.725 K. In what region of the electromagnetic spectrum is each?
The star Rigel in the constellation Orion (the Hunter) emits its greatest intensity of radiation at...
The star Rigel in the constellation Orion (the Hunter) emits its greatest intensity of radiation at a wavelength of 239 nm. a) Calculate the surface temperature of the star. b) What colour is the star? Explain your answer.
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature...
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.56 m, a width of 37.5 cm and a length of 31.0 cm. Calculate the power emitted by the human body. Hints: Calculate the total surface area of the body. Convert the body temperature from Celsius to Kelvin. Then use the Stefan-Boltzmann law. Incorrect. Tries 2/12 Previous Tries What is the...
A lot of blackbody irradiation emanates from the surface of the earth. Recall that light energy...
A lot of blackbody irradiation emanates from the surface of the earth. Recall that light energy (and energy from any region of the electromagnetic spectrum) is quantized. The energy of a photon can be calculated as follows: E = hν = hcλ where h is the Planck constant (6.626×10−34 J⋅s), and c represents the speed of light (2.998×108 m/s). Calculate the energy (in joules) of each photon that is emitted from a patch of ground that is at 32 ∘C....
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature...
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.55 m, a width of 37.0 cm and a length of 31.5 cm. 1. Calculate the power emitted by the human body. Hints: Calculate the total surface area of the body. Convert the body temperature from Celsius to Kelvin. Then use the Stefan-Boltzmann law. Incorrect. Tries 1/12 Previous Tries 2. What...
As the temperature of a backbody increases, the wavelength of the peak in the emitted intensity...
As the temperature of a backbody increases, the wavelength of the peak in the emitted intensity remains the same. shifts to higher values. shifts to lower values. becomes unstable. QUESTION 2 Max Planck discovered the theoretical reasoning necessary to understand the spectrum of the electromagnetic radiation emitted by a blackbody. What was this reasoning based on? A careful consideration of the possible physical effects. Guessing until he found an expression which led to the correct result. Don't select this answer....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT