A tungsten filament, radiating as a gray body, is heated to a temperature of 4000R. At what

Question:

A tungsten filament, radiating as a gray body, is heated to a temperature of 4000°R. At what wavelength is the emissive power maximum? What portion of the total emission lies within the visible-light range, 0.3 to 0.75 μm?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals Of Momentum Heat And Mass Transfer

ISBN: 9781118947463

6th Edition

Authors: James Welty, Gregory L. Rorrer, David G. Foster

See More Books

Question Posted: Oct 31, 2018 12:06 PM

See More Questions

The tungsten filament described in Problem 12.29 dissipates 75 W in an evacuated spherical light bulb of 75-mm diameter. The bulb is in quiescent air and large surroundings at a temperature of 25C....
A certain lightbulb has a tungsten filament with a resistance of 19 when cold and 140 when hot. Assume that Equation 17.7 can be used over the large temperature range involved here, and find the...
A tungsten filament is heated to 2700 K. At what wavelength is the maximum amount of radiation emitted? What fraction of the total energy is in the visible range (0.4 to 0.75 m m)?Assume that the...
47GP: Chapter: CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12 CH13 CH14 CH15 CH16 CH17 CH18 CH19 CH20 CH21 CH22 CH23 CH24 CH25 CH26 CH27 CH28 CH29 CH30 Problem: 1CQ 1MCP 1P 2CQ 2MCP 2P 3CQ...
The correct entry to write off a $400 receivable owed by Ajax Co. using the Direct Write-Off Method would be: A) Debit Allowance for Doubtful Accounts and credit Bad Debt Expense for $400. B) Debit...
This matter involves Hewlett-Packards failure to disclose the circumstances surrounding a board members resignation amidst the companys controversial investigation into boardroom leaks. On May 18,...
The value of the activity coefficient for an ideal solution is (a) 1 (b) 0 (c) Equal to Henry's law constant (d) Equal to vapour pressure.
How does GASB reporting of uncollectible accounts for governmental funds and proprietary funds differ from the reporting of uncollectible accounts under FASB standards?
The plant manager of Orlando Electronics Company is considering the purchase of new automated assembly equipment. The new equipment will cost $189,000. The manager believes that the new investment...
Each student is required to identify individual attributes of interest to them from a sample of 30 respondents (at least) that can provide information about themselves on any two variables that you...
A radiation detector, oriented as shown in the sketch, is used to estimate heat loss through an opening in a furnace wall. The opening in this case is circular with a diameter of 2.5 cm. The detector...
Determine the wavelength of maximum emission for (a) the sun with an assumed temperature of 5790 K, (b) a light bulk filament at 2910 K, (c) a surface at 1550 K, and (d) human skin at 308 K.
Write a program that displays a 3 ? 3 grid, as shown in Figure 14.47c. Use red color for vertical lines and blue for horizontals. The lines are automatically resized when the window is resized. (c)
On 1 October of the current year, Sagir Appraisal Company received $\$ 1980$ in advance from the Land-Ho Real Estate Agency for six months' rent of office space. Required: a Prepare the Sagir...
What will the multiplier be when the MPS is 0, 0.4, 0.6, and 1? What will it be when the MPC is 1, 0.90, 0.67, 0.50, and 0? How much of a change in GDP will result if firms increase their level of...
On 1 October of the current year, Bourdon Company paid \$396 for a two-year comprehensive insurance policy on the business' building. Required: a Prepare the journal entry to record each of the...
A bank borrows $100,000 from the Fed, leaving a $100,000 Treasury bond on deposit with the Fed to serve as collateral for the loan. The discount rate that applies to the loan is 4 percent, and the...
If the multiplier is 5 and investment increases by $3 billion, equilibrium real GDP will increase by: a. $2 billion. c. $8 billion. b. $3 billion. d. $15 billion. e. none of the above.
In problem, list the potential rational zeros of each polynomial function. Do not attempt to find the zeros. f(x) = 6x 4 + 2x 3 - x 2 + 20
Burberrys competitive advantage is through its differentiation strategy. What risk should Burberry remain aware of?
Determine the output current and output resistance of the circuit shown in Fig. 4.61. Fig. 4.61: + 15 V 13.7 k2 |'OUT Q2 700 2
Determine the value of sensitivity S of output current to supply voltage for the circuit of Fig. 4.62, where S = (V CC /I OUT )(I OUT /V CC ). Fig. 4.62: Vcc= 15 V |IOUT 10 k2 R1 Q2 1 k2 R2
In the analysis of the hypothetical reference of Fig. 4.44, the current I 1 was assumed proportional to temperature. Assume instead that this current is derived from a diffused resistor, and thus has...
Dollar-Value LIFO On January 1, 2018, Sato Company adopted the dollar-value LIFO method of inventory costing. Sato's ending inventory records appear as follows: Year Current Cost Index 2018 $31,600...
How many standards are included in the ELP accreditation standards? What stands out to you about the different areas? What are the topic areas under administration and leadership? What are the...
What is performance management systems? Do the companies where you (or others you know) have worked used performance management systems rather than performance appraisal systems? If yes, what kind of...

A tungsten filament, radiating as a gray body, is heated to a temperature of 4000R. At what

Question:

Step by Step Answer:

From Wiens displacement law m...View the full answer

Fundamentals Of Momentum Heat And Mass Transfer

Students also viewed these Physics questions