A certain laser transition emits 6.0 × 10^15 quanta per sec per square metre of λ = 662.6 nm. What i — Atomic Structure Chemistry Question

💡 Solution & Explanation

E per photon = hc/λ = (6.626 × 10^-34 × 3 × 10^8) / (662.6 × 10^-9) = 3 × 10^-19 J. Power = N × E = 6.0 × 10^15 × 3 × 10^-19 = 1.8 × 10^-3 J/s/m².