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Illustrate the light emitting diode for fibre optic communication?
Light-Emitting Diode (LED) for fibre optic communication:
There are two types of LED. They are surface etched well emitter (S-LED) and edge emitter (E-LED).
Into the S-LED, a well is etched onto the top of the planar LED structure. It enables the fibre end to be remained as close as possible to the light emitting area. Moreover, E-LEDs are preferred to use along with small NA while S-LEDs are better for larger NA fibres.
Chemical action in lead acid battery: When the lead acid battery is delivering current, the sulphuric acid breaks up into Hydrogen ions (H 2 ) carrying a positive charge and Su
(i) It has of continuously varying wavelengths in a exact wavelength range. (ii) It is given by solids, liquids and highly compressed gases heated to high temperature. (iii)
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Net force acting on particle of mass 2 kg is 10N in north direction.At t=o, particle was moving eastwards with 10m/s. Find displacement and velocity of particle after 2 seconds.
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How to find out neutral point ? What all things we require to equate or form a equation to find the neutral poind and how to do it?
It the angle through which light ray deviates from the original straight line path.
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