The wavelength (or colour) of light emitted by an LED depends on the energy gap of the semiconductor material. The intensity of light depends on the forward bias current; a higher forward current produces greater light intensity.
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Question
The wavelength and intensity of light emitted by a LED depend upon ______.
Options
forward bias and energy gap of the semiconductor.
energy gap of the semiconductor and reverse bias.
energy gap only.
forward bias only.
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Solution
The wavelength and intensity of light emitted by a LED depend upon energy gap of the semiconductor and reverse bias.
Explanation:
RELATED QUESTIONS
Colour of light emitted by LED depends upon__________________ .
- its forward bias
- its reverse bias
- the band gap of the material of semiconductor
- its size
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