0 0 votes Consider an LED based on a direct bandgap semiconductor material with energy bandgap $1.3$ eV.Given: Plank's constant, $h=6.63 \times 10^{-34} \mathrm{~J} \mathrm{~s}$ and speed of light in free space is $3 \times 10^{8} \mathrm{~m} \mathrm{~s}^{-1}$.In which of the following wavelength ranges the LED will NOT emit?$1410 \pm 20 \mathrm{~nm}$$1090 \pm 20 \mathrm{~nm}$$950 \pm 20 \mathrm{~nm}$$510 \pm 20 \mathrm{~nm}$ LED gateec-2026 electronic-devices energy-bands-in-intrinsic-and-extrinsic-semiconductors led semiconductor multiple-selects + – gatecse 152 views answer comment Share Follow Add Sync Questions Print 0 reply Please log in or register to add a comment.
