Fresnel Diffraction occurs due to size of the obstruction.Fraunhofer Diffraction is defined as the source of light and the screen in which the pattern of diffraction is obtained effectively at the limitless or infinite distance from the diffracting system.
Diffraction is chiefly of two types - Fraunhofer Diffraction and Fresnel Diffraction.Diffraction occurs with all waves which include water waves, sound waves, electromagnetic waves.The phenomena of diffraction can be observed if the size of the opening is relative to the size of the wavelength of light.Diffraction of light is defined as the slight bending of light waves around the border of a slit or an object.Diffraction object gives rise to wavefronts that are also straight or plane.ĭifference between Diffraction and InterferenceĬoherent and Incoherent Addition of Waves.To produce a diffraction pattern, the plane or horizontal wavefront is connected by means of a convex lens.
The incident wavefronts on the diffracting obstacle are horizontal or plane. The screen and the source are infinite from each other. The important points for Fraunhofer Diffraction are discussed in the below points: Fraunhofer Diffraction occurs when the distance is increased and the outgoing diffracted wave becomes straight or horizontal. By using a convex lens, the diffraction pattern is obtained. Resolving Power of Microscopes and Telescopesĭiffraction is primarily categorized into two types -įraunhofer Diffraction is defined as the source of light and the screen in which the pattern of diffraction is obtained effectively at the limitless or infinite distance from the diffracting system. Transmission, Absorption and Reflection of Light Some experiments are proposed to test various aspects of the model.Interference of Light Waves and Young’s Experiment The outline of a discrete calculus needed to describe the model’s interactions is presented. Cosmological inflation, but not a Big-Bang singularity would result from initial conditions of nodes in their closest proximity to each other. Heisenberg’s uncertainty relations emerge naturally from the resulting geometry. Quantum probability is derived from the electric field of a dipole wave in the lattice. Variable velocity along curved streamlines is acceleration and hence gravity. Using the Hamiltonian Analogy and the idea of a node index of refraction n=co/cv General Relativity is reduced to the dynamics of energy transport along streamlines made up of nodes of different spin. The two effects explain a result of Special Relativity in classical terms. Doppler shifts in the signals used by an outside observer to measure the moving object causes a further contraction in the estimated length, similar to the effects of a time dilation. This links the concepts of Newtonian force and mass with in units of h, whereby a collision causes a Heaviside contraction of an object’s length. Motion of matter is a self-convolution of an energy pattern in the lattice. The inverse-square law and E=mc0^2 are derived from the resulting geometry. The surrounding nodes orient their axes to form magnetic, gravitational or electrostatic fields. Two or more adjacent nodes locked together through a tensegrity of attractive (+ -) and repulsive electrostatic forces form as matter. In a vacuum cv is the maximum, c0 the velocity of light. The spin rate of the node receiving the momentum, its ‘density’ determines the rate cv at which it receives the radiation. A spinning node transfers its angular momentum to adjacent nodes by rotating on an orthogonal axis, thus creating an electromagnetic field with forward momentum. Mutual repulsion between nodes making up the vacuum accounts for the expansion of the universe and for the pressure of 'dark matter'. Three space and one time dimension are derived from the lattice and node interactions. Rotating nodes become magnetized and self-assemble as a regular face-centered cubic lattice to form the vacuum, radiation and matter. Only one type of ‘building block' is used: a spherically-symmetrical charged node spinning with angular momentum in units of Planck’s constant (h). A proposal to reconstruct physics from simple physically realistic first principles is outlined using a Beautiful Universe model.
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