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In isolated atom the valence electrons can exist only in one of the permitted orbital's every of a sharply explained energy known as energy levels. But when two molecules are brought close to every other, there are changes in energy levels and they spread in the form of bands.
When an electron makes transition from higher energy level having energy E2(n2) to a lower energy level having energy E1 (n1) then a photon of frequency v is emitted.
Huygens wave theory: Huygen's wave theory is not correct in all respects. 2. It assumes simply that light energy is propagated as a wave. 3. At the time of his proposition
THE BASIC CAPACITOR If we have two metal plates close together, but separated by an insulator or dielectric (which could be air) and we apply a voltage across them, electrons a
list the factors used to classify inductors.
Q. Write any three medical applications of laser. Medical applications (i) In medicine micro surgery has befall possible due to narrow angular spread of the laser beam.
what is a dual power supply?
contruction
the numerical ratio of displacement to the distance covered is always ???????????????
Self inductance: When current through a coil changes, the changing flux induces an emf that opposes the current flow. This emf is the result of self inductance and is called '
Get an expression for work done during reversible isothermal expansion. Get the terms open, isolated and closed system. Give examples.
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