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Fermat's principle; principle of least time (P. de Fermat):
The principle put by P. de Fermat, which states the path taken through a ray of light among any two points into a system is always the path which takes the least time.
A submarine is travelling toward a stationary detector. If the submarine emits a 260-Hz sound that is received by the detector as a 262-Hz sound, how fast is the submarine trav
Steel: Steel contains iron with a small percentage of carbon added it. Iron itself is not very strong but the additions of small percentage of carbon in it decrease the ductility
Under particular condition, light can also suffer inelastic scattering from molecules in which it's wavelength changes.
what is the physical significance of damping coefficient?
What do you understand by "End correction" in resonating air column? What occures to the frequency of a tuning fork a) When it is loaded with a little wax and b) When it is file
Charging: During charging the device is linked across a source of D.C. supply having a voltage of about 3 volts. When the circuit is switched on the current flows inside the cell
Who are the best system integrators? Being fairly the opposite of fiber optics manufacturers, system producers are generally small companies. In this case size has the opposite
Electric Motor: A device, which converts electric energy into mechanical energy is known as Electric Motor. Factors on which the speed of Rotation of Motor Depends: The
The mass of an automobile is 1140kg, and the distance between its front and rear axles is2.48 m. The center of gravity of theca is between the front and rear tires, and the horizon
What is neutral buoyancy? Buoyancy is the net upward force experienced by an object submersed in a fluid. Pascal's principle dictates that fluid pressure on an object enhances
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