4. In class, we expressed the energy density of blackbody radiation in terms of frequency. If...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
4. In class, we expressed the energy density of blackbody radiation in terms of frequency. If the energy density is written in terms of the wavelengths of radiation emitted, it becomes 8thc p(2,T)= 1 a. The above expression is often used as the basis for estimating the temperature of hot objects by measuring the wavelength distribution of light that is emitted. For light emission in the visible and near infrared regions of the spectrum, eT >>1. Using this assumption, show that the wavelength that maximizes the value of p(2,T) at fixed temperature is given by hc Amax 5k,T %3D b. Although stars are not perfect blackbodies, their emission spectra resemble that of a blackbody. Consequently, the wavelength maximum of a star's emission spectrum can be used to estimate its surface temperature. The red dwarf star Gliese 581 found in the constellation Libra has an emission maximum of -830 nm. Estimate its surface temperature. 4. In class, we expressed the energy density of blackbody radiation in terms of frequency. If the energy density is written in terms of the wavelengths of radiation emitted, it becomes 8thc p(2,T)= 1 a. The above expression is often used as the basis for estimating the temperature of hot objects by measuring the wavelength distribution of light that is emitted. For light emission in the visible and near infrared regions of the spectrum, eT >>1. Using this assumption, show that the wavelength that maximizes the value of p(2,T) at fixed temperature is given by hc Amax 5k,T %3D b. Although stars are not perfect blackbodies, their emission spectra resemble that of a blackbody. Consequently, the wavelength maximum of a star's emission spectrum can be used to estimate its surface temperature. The red dwarf star Gliese 581 found in the constellation Libra has an emission maximum of -830 nm. Estimate its surface temperature.
Expert Answer:
Answer rating: 100% (QA)
810T The van 1 25 Tel 8627 a pop hun 1 a when exp cho air 1 then besoras PAIT 8 The export 0 AKBT u... View the full answer
Related Book For
Macroeconomics
ISBN: 978-1319120054
3rd Canadian edition
Authors: Paul Krugman, Robin Wells , Iris Au , Jack Parkinson
Posted Date:
Students also viewed these accounting questions
-
The inflation tax is often used as a significant source of revenue in developing countries where the tax collection and reporting system is not well developed and tax evasion may be high. a. Use the...
-
The drug scopolamine is often used as a sedative to induce sleep in patients. In Behavioral Neuroscience (Feb. 2004), medical researchers examined scopolamines effects on memory with associated word...
-
The harmonic mean is often used as a measure of central tendency for data sets consisting of rates of change, such as speeds. It is found by dividing the number of scores n by the sum of the...
-
Kendall Corners Inc. recently reported net income of $4.8 million and depreciation of $600,000. What was its net cash flow? Assume it had no amortization expense. Enter your answer in dollars. For...
-
Sufficient sodium cyanide, NaCN, was added to 0.015 M silver nitrate, AgNO3, to give a solution that was initially 0.100 M in cyanide ion, CN. What is the concentration of silver ion, Ag+, in this...
-
Nissan Motor Co. is Japans second-largest automotive company, with annual sales of around USD $100 billion. The firm makes Maxima and Sentra cars, Altima and Infiniti upscale sedans, Frontier...
-
Consider the following cash flow diagram. What is the value of \(X\) if the internal rate of return is 15 percent? a. \(\$ 246\) b. \(\$ 255\) c. \(\$ 281\) d. \(\$ 290\) 0 $400 X X 1 2
-
For the office layout shown below and the accompanying trip and distance matrices, determine the total distance traveled per day. Find another layout that results in a lower total distance traveled...
-
Explain what a database management system is. Describe the functions of a database management system. 5 Paragraph Essay Intro ,Body , Conclusion
-
Monthly return data are presented below for each of three stocks and the S&P index (corrected for dividends) for a 12-month period. Calculate the following quantities: - Alpha for each stock - Beta...
-
We will use StatCrunch to obtain the summary stats for our data sets. We will learn more about summary statistics in the next unit. But for now, we just need to obtain the summary stats for the...
-
What is a title warranty and when does it arise?
-
When can a buyer or lessee sue to recover damages from a seller or lessor?
-
To begin to manufacture the VuYu, Bright Lights buys equipment from Crest Labs, Inc. Because Bright Lights does not have the funds to finance the purchase, Crest grants the buyer credit in exchange...
-
What are four defenses to product liability?
-
A seller or lessor cannot consider a buyer or lessee in breach until the time for performance has passed. (True/False)
-
The revenues budget reveals Question content area bottom Part 1 A. the variance of sales from actual for each product B. expected cash flows for each product C. the expected level of unit sales...
-
For the following exercises, find the inverse of the function and graph both the function and its inverse. f(x) = 4 x 2 , x 0
-
In response to the Great Recession, the Federal Reserve took drastic and largely untested measures to stabilize both the financial system and macro economy. These measures caused the monetary base to...
-
The accompanying diagram illustrates the Canadian domestic demand curve and domestic supply curve for beef. The world price of beef is PW. Canada currently imposes an import tariff on beef, so the...
-
The accompanying scatter diagram shows the relationship between the unemployment rate and the output gap in Canada from 1996 to 2016. Draw a straight line through the scatter of dots in the figure....
-
Solve the Gross-Pitaevskii equation and evaluate the mean field energy, see equations (11.2.21) and (11.2.23), for a uniform Bose gas to show that this method yields precisely equation (11.2.6).
-
Solve the Gross-Pitaevskii equation and evaluate the mean field energy, see equations (11.2.21) and (11.2.23), for an isotropic harmonic oscillator trap with frequency \(\omega_{0}\) for the case \(N...
-
Assuming the Dieterici equation of state \[P(v-b)=k T \exp (-a / k T v)\] evaluate the critical constants \(P_{c}, v_{c}\), and \(T_{c}\) of the given system in terms of the parameters \(a\) and...
Study smarter with the SolutionInn App