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Stefan-Boltzmann law (Stefan, L. Boltzmann):
The radiated power P (it is rate of emission of electromagnetic energy) of hot body is proportional to the radiating surface area, A, & the fourth power of the thermodynamic temperature, T. The constant of proportionality refer to the Stefan-Boltzmann constant. Mathematically specking,
P = e sigma A T4,
Where the efficiency rating e refer to the emissivity of the object.
What are ultrasonic drilling and cutting? Explain in short. Ultrasonic Drilling and Cutting Ultrasonic are utilized for making holes into very hard materials as like glass a
Explain about the term simulated absorption in brief. Stimulated absorption: a. For the photon-atom interaction to happen, the energy of the interacting photon h? must match
#question.An experminet to prove that a substance is ferrmoanetic
Given below are two electric circuits A and B Measure the ratio of power factor of the circuit B to the power factor of circuit A.
when told that a diffraction grating has 80 lines per mm we need to work out what 1 line would equal. I have the solution but i cannot figure out how they got 1 line to equal 1x10
When were foundations of quantum mechanics established? Foundations of quantum mechanics : The quantum mechanics foundations were established throughout the first half of th
WHY Surface tension increases when an highly soluble SUBSTANCE is dissolved in water WHILE IT DECREASES WHEN an weakly soluble substance is dissolved in water
What is a monochromatic light? Ans: Breaking the word down mono denotes one and chromatic means of colour so a fairly literal translation for the adjective monochromatic w
Q. Explain an alloy? Answer:- An alloy is a homogeneous hybrid of two or else more elements at least one of which is a metal and where the resulting material has metallic
The percentage of carbon in mild steel is (A) 0.08 to 0.3 % (B) 0.5 to 1.4 % (C) 2.35 % (D) 0.5 % Ans: The percentage of carbon in mild st
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