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Kirchhoff's law of radiation (G.R. Kirchhoff):
The emissivity of a body is equivalent to its absorptance at the simialr temperature.
Kirchhoff's laws (G.R. Kirchhoff)
Kirchhoff's first law
An incandescent solid or gas under high pressure will generate a continuous spectrum.
Kirchhoff's second law
A low-density gas will radiate an emission-line spectrum along with an underlying emission continuum.
Kirchhoff's third law
Continuous radiation viewed by a low-density gas will generates an absorption-line spectrum.
Prove that the various stationary orbit are not equally spaced?
A satellite of mass "M" is in orbit around the earth. If a second satellite of mass "2M" is to be placed in the same orbit, the second satellite must have a velocity which is:
Rule 1: In order to sum or subtract two physical quantities the quantities must have the similar dimension. The final physical quantity has the similar dimensions. Physical quantit
Determine the divergence of the vector field at (1, 1, 0).
In an experiment of Quink tube source freequence 100 Hz is used to find 2nd maxima to 4th manima movalbe part of tube displaced by 1cm then calculate speed of sound in air
A small ball with a mass of 60.0 g is loaded into a spring gun, compressing the spring by 12.0 cm. When the trigger is pressed the ball emerges horizontally from the barrel ata hei
applications of nicol prism?
Molecules: Let us take a piece of matter, for example, a drop of water and see what happens when it is sub-divided into smaller and smaller portions. The drop is first cut
when a soft iron piece is buried under the surface of earth in the north south direction why the iron piece show properties of a magnet
A toy truck is pushed across a table 0.80 m north, and pulled back across the table 0.80 m south. If a constant horizontal force of 15 N was applied in both directions. what
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