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Light Emitting Diode

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Why do you know that lithium salts will never emit green light and copper salts will never emit red light?

Lithium salts do not emit green light because their electron transitions do not correspond to the energy levels associated with green light emission. Similarly, copper salts do not emit red light because the energy levels of their electron transitions do not produce red light emission. Each element's electron transitions are specific to its atomic structure, dictating which colors of light are emitted.


Why Silicon and germanium emit light?

Silicon and germanium are indirect bandgap semiconductors, which means that they do not naturally emit light. In order for these materials to emit light, they need to be doped with specific impurities or be subjected to external stimuli such as electrical current or radiation to create a population inversion and stimulate light emission through processes like electroluminescence or photoluminescence.


Why is it incorrect to describe the moon is Luminous?

Because it does emit light of its own rather it reflects light from other celestial bodies


Why is it incorrect to describe the moon a luminous?

Because it does emit light of its own rather it reflects light from other celestial bodies


What are two types of beta decay for radioactive elements?

Some isotopes emit an electron on decay, others emit a positron (anti-electron).


Do light bulbs emit light or suck dark?

Light bulbs emit light.


Does technetium emit light?

Technetium doesn't emit light.


Do light bulbs emit light or suck in dark?

bulbs emit light


When do atoms emit light energy?

Atoms emit light energy for several reasons: Atoms emit visible light most often when an electron moves from an excited state to a less excited state. Atoms accelerating at high rates can emit bremsstrahlung, or breaking radiation. Finally, atomic nuclei in an excited state can decay to less excited states, emitting light energy. This energy usually not visible though, in the X or gamma ray spectrum.


How does the earth emit light?

The Earth does not emit light, it like the moon reflects light


Does every light source emit only one type of light, or can some light sources emit multiple types of light?

Some light sources can emit multiple types of light, such as white light sources that emit a combination of different colors.


Which term is used to describe objects are visible because of reflected light?

illuminatedThats the right answer for a plus.