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In LED visible light is produced by...

In LED visible light is produced by

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In the spectrum of visible light produced by a prism dispersion is

What is visible light?

What is visible light?

A quantum of visible light is called

A LED emits visible light when its

Assertion: The semiconductor used for fabrication of visible LEDs must at least have a band gap of 1.8 eV. Reason: The spectral range of visible light is 0.4 eV to 1.8 eV

Assertion: The semiconductor used for fabrication of visible LEDs must at least have a band gap of 1.8 eV. Reason: The spectral range of visible light is 0.4 eV to 1.8 eV

The frequnecy of visible light is of the order of