Why the length of a standard meter re-define
Describe the reason in short why the length of a standard meter re-defined in the year of 1983?
Expert
In 1983 the meter has been re-defined as the distance light travels in the vacuum in accurately 1⁄299,792,458th of a second.
Lumen: lm: The derived SI unit of luminous flux, stated as the luminous flux produced by a uniform point source of 1 cd releasing its luminous energy over a solid angle of 1 sr; it therefore has units of cd sr.
Explain Ampere's law? Ampere's law (A.M. Ampere):
Luxon: The particle that travels solely at c (that is the speed of light in vacuum). All luxons have a rest mass of exactly zero. Though they are mass less, luxons do take momentum. The photons are the prime illustration of luxons (that is the name it
State the law of Lamberts Cosine? Describe briefly?
Josephson effects (B.D. Josephson; 1962): Electrical effects examined whenever two superconducting materials are separated by a thin layer of the insulating substance.
Magnetic monopole: The hypothetical particle that comprises sources and sinks of the magnetic field. The magnetic monopoles have never been found, however would only cause pretty minor modifications to the Maxwell's equations. They also appear to be p
Watt: W (after J. Watt, 1736-1819): The derived SI unit of power, stated as a power of 1 J acting over the period of 1 s; it therefore has the units of J/s.
Define the meaning of Network in brief.
Illustrate the difference between the cathode ray and beta ray?
What do you understand by the term Ambient Reflection? And also write down its characteristic?
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