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An LED is constructed from a p-n junctio...

An LED is constructed from a p-n junction based on a certain semi conducting material whose energy gap is 1.9eV then the wavelength of the emitted light is

A

`6.5xx10^(-7)m`

B

`2.9xx10^(-9)m`

C

`9.1xx10^(-5)m`

D

`1.6xx10^(-8)m`

Text Solution

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