Physics · 2022
JEE Main · 25 July 2022, Shift 1 · Q59
The energy band gap of semiconducting material to produce violet (wavelength =4000 ) LED is \ \ \ \ eV. (Round off to the nearest integer).
The energy band gap of semiconducting material to produce violet (wavelength $\displaystyle =4000 \AA$ ) LED is \_\_\_\_ eV. (Round off to the nearest integer).
Official answer
3
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.