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Fizeau method (A. Fizeau, 1851):
One of the first really relativistic experiments intended to calculate the speed of light. Light is flow through a spinning cogwheel driven through running water, is reflected off a distant mirror, and passed back then through the spinning cogwheel. While the rate of running water (and therefore the spinning of the cogwheel) is synchronized so that the returning pulses are eclipsed, c may be calculated.
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
The Maximum displacement of a vibrating particle of medium from its mean position is known as amplitude.
Correspondence principle (N. Bohr) The principle that when a new, more general theory is placed forth, it has to decrease to the more specialized (and usually simpler) theory
It is a measure of the extent up to which a material concentrates electrostatic lines of flux. It is the amount of the stored electrical energy when a potential is applied, relat
Short Sightened OR Myopia: When a person can't able to see objects clearly but can see near objects clearly. This defect of vision is known as short sightedness.
Tardon A particle that has a positive real mass & travels at a speed less than c within all inertial frames.
What are eddy currents? State how their effect is decreased in transformers. (b) Verify the ef?ciency of a 15 kVA transformer for the following conditions: (i) full load, un
determine the pressure of a 20 lb force applied to an area of 10 inch squared
Describe about Helium-Neon Laser in short. Helium-Neon Laser: The first gas laser termed as Helium-Neon (He-Ne) laser (one of the illustrations for four level lasers) was co
When is the combination of cells advantageous and why? (Mar 2009) What do you mean by internal resistance of a cell? Write down the value of internal resistance of an ideal cell
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