Since the lifetimes of the transiti

Since the lifetimes of the transition states (ground and excited states) of the atoms are finite there is uncertainty in the transition times, due to Heisenberg’s Uncertainty Principle  line broadening.
D × Dt = 1
Dn º uncertainty in the frequency (µ line width) Dn
varies as a function of Dt (usually ~10-7 to 10-8 s)
Dt º lifetime of the excited state
Quantum mechanical idea: to measure two frequencies apart need some minimum time  depend to the lifetime of excited state
In terms of wavelength (l), line widths due to uncertainty broadening are usually ~10-4 Å (10-5 nm). Known as natural line width

Hasil (Bahasa Indonesia) 1:

Karena tahan Serikat transisi (tanah dan tereksitasi) atom terbatas ada ketidakpastian dalam masa transisi, karena memperluas baris  Heisenberg prinsip ketidakpastian. D × Dt = 1 Dn º ketidakpastian dalam frekuensi (μ jalur lebar) Dn bervariasi sebagai fungsi dari Dt (biasanya s ~ 10-7-10 - 8) DT º seumur hidup negara bersemangatIde mekanik kuantum: untuk mengukur dua frekuensi apart perlu beberapa waktu minimum  yang sesuai dengan masa bersemangat negaraDalam hal gelombang (l), jalur lebar karena ketidakpastian memperluas ini biasanya Å ~ 10-4 (10-5 nm). Dikenal sebagai alami jalur lebar