Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 15.10, Problem 36AAP
To determine
The fraction of light absorbed by the plate.
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Chapter 15 Solutions
Foundations of Materials Science and Engineering
Ch. 15.10 - Write the equation relating the energy of...Ch. 15.10 - Prob. 2KCPCh. 15.10 - Prob. 3KCPCh. 15.10 - Prob. 4KCPCh. 15.10 - Prob. 5KCPCh. 15.10 - Explain why metals absorb and/or reflect incident...Ch. 15.10 - Prob. 7KCPCh. 15.10 - Prob. 8KCPCh. 15.10 - Prob. 9KCPCh. 15.10 - Prob. 10KCP
Ch. 15.10 - Prob. 11KCPCh. 15.10 - Prob. 12KCPCh. 15.10 - Prob. 13KCPCh. 15.10 - Prob. 14KCPCh. 15.10 - Prob. 15KCPCh. 15.10 - Prob. 16KCPCh. 15.10 - What are the basic elements of an optical-fiber...Ch. 15.10 - Prob. 18KCPCh. 15.10 - Explain how optical fibers act as waveguides.Ch. 15.10 - Prob. 20KCPCh. 15.10 - Prob. 21KCPCh. 15.10 - Prob. 22KCPCh. 15.10 - Prob. 23KCPCh. 15.10 - Prob. 24KCPCh. 15.10 - Prob. 25KCPCh. 15.10 - Why are type I superconductors poor...Ch. 15.10 - Prob. 27KCPCh. 15.10 - Prob. 28KCPCh. 15.10 - Prob. 29KCPCh. 15.10 - Prob. 30KCPCh. 15.10 - Prob. 31KCPCh. 15.10 - Prob. 32AAPCh. 15.10 - A semiconductor emits green visible radiation at a...Ch. 15.10 - Prob. 34AAPCh. 15.10 - Calculate the reflectivity of ordinary light from...Ch. 15.10 - Prob. 36AAPCh. 15.10 - Prob. 37AAPCh. 15.10 - Prob. 38AAPCh. 15.10 - Prob. 39AAPCh. 15.10 - Prob. 40AAPCh. 15.10 - Prob. 41AAPCh. 15.10 - Prob. 42AAPCh. 15.10 - Prob. 43AAPCh. 15.10 - Prob. 44AAPCh. 15.10 - Prob. 45AAPCh. 15.10 - Prob. 46AAPCh. 15.10 - Prob. 47AAPCh. 15.10 - Prob. 48AAPCh. 15.10 - Prob. 49AAPCh. 15.10 - Prob. 50AAPCh. 15.10 - Prob. 51AAPCh. 15.10 - Prob. 52SEPCh. 15.10 - Prob. 53SEPCh. 15.10 - Prob. 54SEPCh. 15.10 - Prob. 55SEPCh. 15.10 - Prob. 56SEP
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- 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 (0.4to0.75m)? Assume that the filament radiates as a graybody.arrow_forwardFused quartz transmits 90 percent of the incident thermal radiation between 0.2 and 4µm. Suppose a certain heat source is viewed through a quartz window. What heat flux inwatts will be transmitted through the material from blackbody radiation sources at (a)800◦C, (b) 550◦C, (c) 250◦C, and (d ) 70◦C? (Holman, 2002)arrow_forwardThe wavelength at which the Sun emits its most intense light is about 550nm. Assuming the Sun radiates as a perfect blackbody, estimate (σ = 5.6696 x 10-8 W/m2 K4). Find its total emitted power.arrow_forward
- The speed of light is 186,000 miles per second and the sun, on average is 93 million miles from the earth. How long, in minutes, does it take for a photon of light to get from the sun to the earth?arrow_forwardAn engineer is investigating objects that can be used as a solar collector. One ofthe objects considered is the object made of aluminum and is coated with leadsulfate. Investigation shows that the reflectivity of this object is 0.2 for radiationat wavelengths less than 3.3 μm and 0.95 for radiation greater than 3.3 μm. Inorder to get better insight into the behavior of the object, as a candidate for asolar absorber, the object is then exposed to two different conditions: a solarradiation (T ~ 5800 K) and a room temperature (T ~ 300 K). What is the energyreflected by the object at these two conditions?arrow_forwardCalculate the energy of a photon of electromagnetic radiation at the wavelengths: 0.052 nm (wavelength contained in medical X-rays)arrow_forward
- The tungsten filament of an incandescent light bulb has a temperature of approximately 3000 K. The emissivity of tungsten is approximately 1/3, and you may assume that it is independent of wavelength. To increase the efficiency of an incandescent bulb, would you want to raise or lower the temperature? (Some incandescent bulbs do attain slightly higher efficiency by using a different temperature.)arrow_forwardIt is desired that the reflectivity of light at normal incidence to the surface of a transparent medium be less than 2.2%. Compute the maximum allowable value of ns for this transparent material.arrow_forwardA butane torch is a tool in which butane is burned to create a flame. A detector, located at 2meters from the flame, only measures the flux of green photons (λ=500[nm]). At a certain moment, the detector measures a photon flux of ϕ(500nm)=3.37⋅1025[s−1⋅m−2]. For simplicity, assume that the flame behaves like a black body and has a spherical shape with a radius of 15cm, while the detector radius is 5cm. What is the temperature of the butane flame in?arrow_forward
- A black body of 0.2 m^2 area has an effective temperature of 800K. Calculate a). The total rate of energy emission . b). The intensity of normal radiation and c). The intensity of radiation along a direction 60° to the normal.arrow_forwardThe reflectivity of aluminum coated with lead sulfate is 0.35 for radiation at wavelengths less than 3 mm and 0.95 for radiation greater than 3 mm. Determine the average reflectivity of this surface for solar radiation (T < 5800 K) and radiation coming from surfaces at room temperature (T < 300 K). Also, determine the emissivity and absorptivity of this surface at both temperatures. Do you think this material is suitable for use in solar collectors?arrow_forward
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