Physics · PYQ NEET UG 2019(2)

An LED is constructed from a p-n junction diode using GaAsP. The energy gap is \( 1.9\text{ eV} \). The wavelength of the light emitted will be equal to

1. A
   \( 654 \times 10^{-11}\text{ m} \)
2. B
   \( 10.4 \times 10^{-26}\text{ m} \)
3. C
   \( 654\text{ nm} \)
4. D
   \( 654\text{ Å} \)