The lifetime of an ordinary excited state is:
Correct answer: B. 10^-8 sec
- A. 10^-35 sec
- B. 10^-8 sec
- C. 10^-3sec
- D. 0.1 sec
Explanation
The lifetime of an ordinary excited state refers to the time it takes for an atom or molecule to transition from the excited state back to the ground state. The average lifetime of most excited states is approximately 10-8 seconds.
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Atoms emit or absorb light at specific wavelengths because electrons occupy quantized energy levels and change levels by absorbing or releasing photons. The topic covers emission and absorption spectra, spectral series, hydrogen’s line spectrum, energy-level transitions, and the relation between wavelength, frequency and photon energy.
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