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Ultraviolet catastrophe:
A shortcoming of the Rayleigh-Jeans formula, that tries to explain the radiancy of a blackbody at several frequencies of the electromagnetic spectrum. It was obviously wrong since as the frequency enhanced, the radiancy enhanced without bound; something quite not observed; it was dubbed the "ultraviolet catastrophe." It was later on reconciled and described by introduction of the Planck radiation law.
what is thermal conductivity ?
Explain the Transmission of Heat Transmission of heat (movement of heat from the hotter item to the colder item) can be brought about three ways: by conduction, convection, and
A multimode, step-profile fibre has a core radius of 50 microns, a core index of 1.52 and a cladding index of 1.50. (a) If the fibre end-face is excited by a source with a wave
Describe the construction and working of carbon dioxide laser. Construction and Working: The most fundamental form of a CO 2 laser comprise a gas discharge (along with a mi
The cantilevered beam below is supported at O. F1 and F2 in kN are given in P21 and P22 respectively and act on the beam as shown. Determine the magnitude and direction of a sing
Phenomenon of resonance At resonance, rapid transfer of energy takes place resulting louder sound (booming sound). If two bodies having same natural frequency is placed side b
What is The sun? The sun:- Sun the brightest object in the universe. It is main body of the solar system. It has a luminous sphere approximately 8,65,000 miles in diameter. It
sir please tell me about it
Write down the expression for the equivalent focal length of two thin lenses separated by a distance and illustrate the terms.
Explain interference of light? Write two essential conditions for sustained interference pattern to be produced on the screen. Illustrate a graph showing the variation of intens
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