Out line two application of reflactive index
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Ответ:
Explanation:
In addition, they are used as light emitting diodes, optical waveguides, optical filters, piezoelectric devices, multimeter sensors, electron-beam pumped lasers, spintronics, quantum computing, electrophotography and photo-catalysis.
Ответ:
The tension in the string is 98 newtons.
Explanation:
Since a mecanical wave is propagated throughout the material of the string under tension, which is calculated by using the following formula:
Where:
If we know that
and 
, then the tension in the string is:
The tension in the string is 98 newtons.