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Ehrenfest paradox (Ehernfest, 1909)
The special relativistic "paradox" including a quickly rotating disc. As any radial segment of the disc is perpendicular to the direction of motion, there must be no length contraction of the radius; though, since the circumference of the disc is parallel to the direction of motion, it has to contract.
What is index fiber? How you define the modes in an optical fiber? Give a relation between core diameter and numerical aperture. Ans.: The index profile of a single mode fi
Properties of Lines of Flux To make the imaginary lines of flux describe the behaviour of the magnetic field we must give them appropriate properties. Thus lines of flux have
9.8-g lead bullet with a muzzle velocity of 3.90 x 10 2 m/s is stopped by a wooden block. What is the change in temperature of the bullet if one-fourth of its original kinetic
Ultra violet Waves: The wavelength of ultra violet wave from 380mm down to 60nm.
give me assignment on force
Derive an expression for the torque acting on a loop of N turns, area A, carrying current i, when held in a uniform magnetic field. With the help of ciruit, show how a moving coil
Explain about the wave-particle duality of light and matter. The wave-particle duality of light and matter Into 1690 year Christiaan Huygens theorized which light was compos
why we use compensater??
What are the pumping schemes? Pumping Schemes: a. Optical pumping through photons b. Electrical pumping through electric glow discharge/electric current/electron beam
Can you explain lens maker's formula. Derive the mathematical expression for the effective focal length of two thin lenses in contact.
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