The life time of an electron in state is times more than an ordinary excited state.
Correct answer: D. 10^8
- A. 10^3
- B. 10^5
- C. 100
- D. 10^8
Explanation
This option corresponds to the correct answer, indicating a much longer lifetime for an electron in a metastable state compared to an ordinary excited state.
This question appeared on the KMU Centralized Admission Test 2021 paper, which you can sit online with every answer explained.
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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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