AMU 2025 — science PYQ
AMU | science | 2025The energy of a photon of sodium light of λ = 5890 Å equals the bandgap of a semiconducting material. The minimum energy required to create an electron hole pair is:

The energy of a photon of sodium light of λ = 5890 Å equals the bandgap of a semiconducting material. The minimum energy required to create an electron hole pair is: