Physics
Definitions
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Wattles
Current : The component of current (i.e. Iv
Sin ф) which does no useful work in an a.c. circuit
is called wattles current. |
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| Wave
Optics (or Physical Optics) : The branch of optics is
concerned with the nature of light and involves primarily
the theory of waves. It deal with the phenomena like interference,
diffraction, polarisation etc. It is also called physical
optics. |
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