Excited atoms return to the ground state in _. (time)
Correct answer: A. 1 ns
- A. 1 ns
- B. 2 ns
- C. 3 ns
- D. All of these
Explanation
Excited atoms return to their ground state in 1ns.
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About Atomic Spectra
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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