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Explain the Wave Particle Duality
Any object in the world can be considered to be a particle or wave and will exhibit properties of both. For example, a photon of light, an electron, and a moving baseball all have wave- and particle-like properties. Any object has an associated deBroglie wavelength, suggested by a young Ph.D. candidate, Louis deBroglie, in 1924. The deBroglie wavelength is given by
λ = h /mv where λ is the deBroglie wavelength in m, h is Planck's constant ( h = 6.626 x 10 -34 Js), m is mass of the object in kg, and v is its speed in m/s. We have dealt a bit with the wave nature of light in the last few chapters. As a particle, light comes only in discrete packages called photons. For a given frequency of light you cannot have less than one photon of energy.
E = h f or E = h (c/ λ) where E is the energy of a photon in joules, h is Planck's constant ( h = 6.626 x 10 -34 Js), f is the light's frequency in sec-1, c is the speed of light 2.99 x 108 m/s and λ is the wavelength in meters.
A simple model of the earth and moon The earth can be shown by an orange or other round object stuck on a piece of bamboo or a meat skewer. A piece of bent wire or knitting nee
Explain the Resonance of Sound in Strings Strings on musical instruments, like harps, are held still at both ends, that is why the standing waves have nodes at every end of the
Q. The image of a small electric bulb fixed on the wall of a room is to be obtained on the opposite wall ma way by means of a large convex lens. What is the maximum possible focal
A stone drops from the edge of the roof. It passes the window 2 m high in 0.1s . How far is the roof above the top of the window? Solution) Height of the window (h) = 2m Acce
An atom in a solid state has no degrees of freedom for transnational and rotational speed. At great temperatures due to vibration along 3 axes it has 3 Χ2(directions) = 6 degrees
Steps of working of Unijunction Transistor (i) When emitter circuit is closed through switch S but emitter voltage is reduced to zero, and a voltage V BB is applied between
Alpha particles are nuclei of: a) Hydrogen b) Helium c) Oxygen d) Nitrogen Ans: Alpha particles are nuclei of helium.
what is the substance produced in the liver that acts in the small intestine during digestion?
what is radioactivity?
A thermal imager is used to measure the temperature of a target surface (ε = 1) in the test section of a wind tunnel. The thermal imager must view the target though a window. The t
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