Eduprobe
Question:
Excited hydrogen atom emits light in the ultraviolet region at 2.47 × 10¹⁵ Hz. With this frequency, the energy of a single photon is: (h = 6.63 × 10⁻³⁴ Js)
2.680 × 10⁻¹⁹ J
8.041 × 10⁻³⁰ J
1.640 × 10⁻¹⁸ J
6.111 × 10⁻¹⁹ J
Solution:
Energy of photon = h × ν
Energy = 6.63 × 10⁻³⁴ × 2.47 × 10¹⁵ = 1.640 × 10⁻¹⁸ J