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Michelson-Morley experiment (A.A. Michelson, E.W. Morley; 1887)
Probably the most popular null-experiment of all time, designed to check the presence of the proposed "lumeniferous aether" by which light waves were thought to propagate. As the Earth moves through this aether, a lightbeam fired into the Earth's direction of motion would lag behind one fired sideways, where no aether influenced would be exist. This difference could be detected along the use of an interferometer.
The experiment illustrated absolutely no aether shift whatsoever, where one must have been quite detectable. Therefore the aether concept was discredited as was the idea that one computed the velocity of light as being inserted vectorially to the velocity of the emitter.
Charge is the characteristic associated with matter due to which it produces and experiences electrical and magnetic effects.
Aiming Above the Monkey Assume a zookeeper must shoot a banana from banana cannon to a monkey who hangs from the limb of a tree. This particular monkey has a habit of dropping
Q. What is fluorescence? When an atomic or else molecular system is excited into higher energy state by absorption of energy it returns back to lower energy state in a time les
example of problems of vector and scalar with solution
Q. Explain why does heated air expand? Answer:- Temperature is habitually defined as the average thermal energy of the substance at hand. Therefore the hotter a substance
A small spool and a large spool Using nails for axles fasten a large spool and a smaller spool to a block of wood. Slip a rubber band in excess of both spools. Turn the larger
State Gauss's law. The total flux of the electric field E over whichever closed surface is equal to 1/ε o times the net charge enclosed by the surface. That is φ = q / ε
A surveyor is using a magnetic compass 7.1 m below a power line in which there is a steady current of 120A. What is the magnetic field in microteslas at the site of the compass due
Define the terms threshold frequency and stopping potential in relation to the phenomenon of photoelectric effect. How is the photoelectric current affected on enhancing the (i)
Action and reaction are always equal and opposite.Then,how does a body moves?
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