why do the intensity of the light in LED varies with that test of different liquid
Answers
Answer:
In most diodes that energy leaves as heat, but in LEDs that energy is dissipated as light! While the wavelength of the light depends on the band gap of the semiconductor, the intensity depends on the amount of power being pushed through the diode.
Answer:
light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor.[5] White light is obtained by using multiple semiconductors or a layer of light-emitting phosphor on the semiconductor device.[6]