Good absorbers are good emitter
WebObjects that are good radiators generally: A. absorb radiation relatively well B. both C. reflect radiation relatively well D. neither absorb radiation relatively well A good insulator: … WebSolution. Verified by Toppr. Correct option is B) Good absorbers of heat are good emitters of heat. It is better explained by the Kirchoff's law of radiation. For eg - Black Body is a good emitter as well as good absorber of heat. Solve any question of Thermal Properties Of Matter with:-. Patterns of problems.
Good absorbers are good emitter
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WebMar 1, 2015 · Maybe. Expose a couple flat rocks to the sun (~1 kW/m 2 ). At steady state, each radiates at the same rate it absorbs energy, and that rate is a function of temperature (Stefan-Boltzmann), dq/dt = (5.67 x 10 -8 W/m 2) εT 4, where ε is a function of temperature and of the material (black rock, white rock for the case you've described). WebMar 1, 2015 · If a black object, being black, is a very good absorber or sunlight and at the same time a great emitter, why wouldn't it be cool? The total emission would seem to be …
WebJul 7, 2024 · It is an ideal emitter: at every frequency, it emits as much or more thermal radiative energy as any other body at the same temperature. What are good and bad emitters of radiation? Dull dark matt surfaces are good absorbers and good emitters of radiation. For example the cooling fins on the back of a refrigerator. WebAs nouns the difference between absorber and emitter is that absorber is a device which causes gas or vapor to be absorbed by a liquid while emitter is that which emits …
WebGood-emitters . Kirchhoff's Radiation Law: Kirchhoff's law states that if a body absorbs a given wavelength of radiation, it must release the same wavelength of radiation. The explanation for the Correct answer: Option C: Good-emitters . According to Kirchhoff's radiation law, good heat absorbers are also good heat emitters. Hence, option C is ... http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/absrad.html
http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/absrad.html
WebObjects that are good emitters are also good absorbers ( Kirchhoff’s radiation law ). A blackened surface is an excellent emitter as well as an excellent absorber. If the same … custodial cd accountWebBlack is a good absorber of heat: A black body absorbs all the wavelengths of light that falls on it. It absorbs light of every wavelength and do not reflect them. They not only are good absorbers but good emitters too. Since they absorb most of the visible light, they appear black in color. Hence, black is a good absorber of heat. custodial certification coursesWebApr 3, 2024 · Which means that the good absorbers of heat are also good emitters of heat. Hence, the correct answer is B. Good emitters of heat. Additional Information: A … marianna vornameWebAccording to Kirchhoff's Radiation Law good absorbers are good emitters. For a body of any arbitrary material emitting and absorbing thermal electromagnetic radiation at every wavelength in thermodynamic equilibrium, the ratio of its emissive power is equal to a universal function only of radiative power. Download Solution PDF. marianna volpertWebJul 7, 2024 · Good emitters of IR (infra-red) radiation are also good absorbers. Matt, black surfaces are the best emitters and absorbers; and shiny, light surfaces are the worst … marianna vis realtor nhWeb- according to Kirchhoff's law, good absorbers at a particular wavelength are good emitters at the same wavelength - thus the LW radiation that is absorbed by atmospheric greenhouse gasses is emitted, thus the earths surface and lower atmosphere are warmed . custodial childWebA Good Absorber is a Good Emitter According to the Stefan-Boltzmann law, the energy radiated by a blackbody radiator per second per unit area is proportional to the … custodial care vs assisted living