When an $LED$ is manufactured by using aluminium gallium arsenide $(AlGaAs)$,it emits:

  • A
    ultra-violet light
  • B
    infra-red radiation
  • C
    green light
  • D
    blue light

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Similar Questions

Why are $Si$ and $GaAs$ preferred materials for solar cells?

Identify the incorrect statement.

$A$ $p-n$ photodiode is made of a material with a band gap of $2.0\, eV$. The minimum frequency of the radiation that can be absorbed by the material is nearly:

In a $PN$ junction photocell,the value of the photo-electromotive force produced by monochromatic light is proportional to

To measure light intensity,we use:

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