Three photodiodes `D_1 , D_2 ` and `D_3` are made of semiconductors having
band gaps of ` 2.5 eV , 2 eV` and 3 eV , respectively . Which one will be able to detect light of wavelength ` 6000 Å ` ?

Three photodiodes D_(1), D_(2) and D_(3) are made of semiconductors having band gaps of 2.5 eV, 2 eV and 3 eV, respectively. Which ones will be able to detect light of wavelength 6000 Å?

Three photo diodes D_1 , D_2 and D_3 are made of semiconductors having band gaps of 2.5 eV, 2eV and 3eV, respectively. Which ones will be able to detect light of wavelength 6000 oversetcircA ?

Explain : (i) Three photo diodes D_1, D_2, and D_3, are made of semiconductor having band gaps of 2.5 eV, 2 eV and 3 eV respectively. Which one will be able to detect light of wavelength 6000 Å ? (ii) Why an elemental semiconductor cannot be used to make visible LEDs?

Three photo diods D_1 , D_2 and D_3 are made of semiconductors having band gaps of 2.5 eV, 2eV and 3eV, respectively. Which ones will able to detect light of wave length 6000 overset @(A) ?