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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.
Describe the construction and working of a rubby LASER with related diagrams?.
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true or false. All radioactive elements have been synthesized
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Illustrate the working and principle of a nuclear reactor with the help of a labeled diagram?
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