if the temperature of a black body is reduced by half, the amount of emitted radiation is reduced by
a) 1/4
b) 1/2
c) 3/4
d) 1/16
Can you also explain how you find the answer please.
if the temperature of a black body is reduced by half, the amount of emitted radiation...
A black body has an effective surface temperature of 450°C. Determine: (a) The total radiation energy (W/m2) that can be emitted by the black body (b) Determine total radiation energy (W/m%) that can be emitted by the black body within the 5-50 um wavelength region (c) The spectral blackbody emissive power of the black body at a wavelength of 10 um. 12
8. A black body has an effective surface temperature of 450°C. Determine: (a) The total radiation energy (W/m²) that can be emitted by the black body (b) Determine total radiation energy (W/m²) that can be emitted by the black body within the 5-50 um wavelength region (c) The spectral blackbody emissive power of the black body at a wavelength of 10 um.
1. Explain in a concise and clear! a. Principles of thermal equilibrium! b. Black body phenomenon to explain thermal radiation! c. Factors that influence the amount of thermal radiation emitted by objects! d. Application for the use of thermal radiation theory!
The rate of heat transfer by emitted radiation is determined by the Stefan-Boltzmann law of radiation = ceAT4 t where a 5.67x108 J/(s m2. K4) is the Stefan-Boltzmann constant, A is the surface area of the object, and T is its absolute temperature in kelvin. The symbol e stands for the emissivity of the object, which is a measure of how well it radiates. An ideal jet-black (or black body) radiator has e 1, whereas a perfect reflector has e...
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Demonstrate that the intensity of radiation from a black body in equilibrium with radiation is given by I = 1/4 cu. also show that the Stefan-Boltzmann constant is σ = 1/4 ca with a = 7.56 x10 ^ -16, u is the density of the radiation energy
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(i) A total radiation thermometer (calibrated with a black body) reads a brightness temperature of 427 degrees celcius on a section of an opaque reactor wall which has a total grey emissivity, of 0.8. Write the formula allowing the determination of its true temperature, Tt1, and calculate Tt1 to the nearest degree °C. Determine the relative error (in %) made when neglecting the emissivity correction.
for Technetium-99 answer the following: Describe the Radiation type that is emitted. Describe Type of Radiation, Symbol, Mass number and Charge. Describe Radiation and Shielding Required. How the travel distance “Radioactive” Isotope in Air, Tissue, and what would be used for Shielding? Can it penetrate through the body? Describe, in greater detail than above, all medical application(s) and how it is used. Describe if there are any negative or hazards associated with element? Calculate the amount of time needed to...
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