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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.
A 95.7-nm film of an unknown substance is able to prevent 555-nm light from being reflected when surrounded by air. What is the index of refraction of the substance 2d
Please help I am stuck on this physics problem. Please cany anyone explain to me how to do it step by step please? If the speed of a car is increased by 135%, by what factor will
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Atoms are particles of elements, substances that could not break down further. In examining atomic structure through, we have to clarify this statement. An atom cannot be broken do
What is the specific resistance of material of a conductor. What do you mean by thermoelectric refrigerators?
Metallurgical Industry:- Variable speed DC drives are being use usually now variable frequency AC drives using squirrel cage motors
is door a example of translatory motion
Core losses or Iron losses: These losses having of hysteresis and eddy current losses, which happen due to pulsation of flux in the core. These losses depend upon the maximum flux
what is ultimate strength
Break a stick with inertia Secure a small stick 18 to 20 cm in length. If no other stick is available a lead pencil will do. Fold a newspaper and place it near the edge of a ta
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