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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.
Evaluate the uniform speed of gondola? Q. The world's largest ferris wheel with a radius of 50.0 m is located in Yokohama City, Japan. Each of the sixty gondolas on the wheel t
Interfacial polarization takes place whenever there is an storage of charge at an interface between two materials or between two regions in a material. As shown in the material ha
Explain the Friction Friction is a force that works against all motion. It slows everything down and it is the reason that the motion we are most familiar with always seems to
Define the term multi-mode fibre shortly. Multi-mode fibre: This type of fibre permits more than one mode to travel by this. As this has to permit more number of modes to tr
Evaluate the speed will the string break A certain string just breaks when it is under400N of tension. A boy uses this string to whirl a 10-kgstone in a horizontal circle of rad
to derive expreation for magnitude & direction for the resultant which two are acting at a point
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
Q. Explain Mirror - Lens Equation? A central equation in optics relates the focal length, object distance and image distance for a thin lens or mirror. This equation is general
Wave motion is the motion in which the particle/matter remains at the point where it is. But the disturbance/energy gets transfer from one point to the other. The particle just o
A Balloon is inflated with Air by connecting it to a well insulated 100 L gas canister. Initially the air canister is at a pressure of P C1 = 9 MPa and at a temperature of T C1 =
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