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Electric and Magnetic Fields of an Oscillating Charge
A 3 dimensional animation of the "far" fields of an oscillating charge. Electromagnetic radiation (EM radiation or EMR) is a form of energy emitted and absorbed through charged particles that exhibits wave-like behavior as it travels through space. EMR has both electric and magnetic field elements, which stand in a fixed ratio of intensity to each other and that oscillate in phase perpendicular to each other and perpendicular to the direction of energy and wave propagation. In a vacuum, electromagnetic radiation propagates at a features speed, the speed of light.
Noether theorem (Noether): A theorem which revels that symmetries are what gives increase to conserved quantities. For example, translational symmetry (the fact that the laws
An army plane wants to drop supplies to a group of physics students stranded on an island. In order for the package to land on the island, the pilot needs to drop the package befor
What are basic attenuation mechanisms in a fibre? The fundamental attenuation mechanisms into a fibre are as follows: a. Absorption b. Scattering (Mie and Rayleigh scatte
When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, the scale reads o
If 3 particles of different mass located at different positions: 1- 1kg position : (0,0) 2- 2kg position: (0,5) 3- 3kg position : (-1,0) If a force of 2 N at 45 degrees is applie
A car of mass 800 kg is pulling a trailer of mass 300 kg up the slope of angle ? to the horizontal where sine ? = 1/200. Resistance to motion (apart from gravity) is 1.5 N per kg o
What is fusion? It is a nuclear reaction in which two nuclei join to form larger (with nearly combined mass) nuclei. It discharges lot of energy. Sun and stars discharge energy
formula for maximum height.
What type of material in optical fibres used? Material in optical fibres: Optical fibres are generally made along with two kinds of materials that are glass (silica) and pla
Show that the spectrum of thermal radiation for T ¼ 300K peaks at approximately 10 microns Minimum 100 words accepted
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