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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 are the advantages of fibre optic communication? Advantages of fibre optic communication are as follows: a. Enormous band width Coaxial cable transmission of 500 M
Ascooter acquires velocity of 36km/hr in 10 secs just after the start and stops after 20 secs. Find the acceleration in both cases.
define
What are the objectives to know about working of ultrasonics? Objectives of ultrasonics: a. Understand the term ultrasonics. b. Describe the principle, working and constr
What is the difference among isolation transformers and step up or step down transformer? Actually an isolation transformer may be physically the similar as a Step up/Step Down
Right-Hand Screw Rule In physics, the right-hand rule is a general mnemonic for understanding notation conventions for vectors in 3 dimensions. It was invented for use in elect
Q. In 17 Cl 35, Compute the number of protons, neutrons and electrons. Number of electrons = 17, Number of protons = 17, Number of neutrons = 18
Henry; H (after W. Henry, 1775-1836): The derived SI unit of inductance, described as the inductance of a closed circuit wherein an electromotive force of 1 V is generated whe
A single-phase transformer has 2000 turns on the primary and 800 turns on the secondary. Its no-load current is 5A at a power factor of 0.20 lagging. Assuming the volt drop
Differentiate between Fraunhofer's and Fresnel's type of diffraction?
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