Life time of electron in metastable state is about _.
Correct answer: B. 10-3 sec
- A. 10-5 sec
- B. 10-3 sec
- C. 10-8 sec
- D. 10-2 sec
Explanation
Metastable states are characterized by their relatively longer lifetimes compared to typical excited states due to the stability they offer. The lifetime of an electron in a metastable state is approximately 10-8 seconds, making Option C the correct choice. Option A overestimates the lifetime, while Options B and D significantly overestimate it, as metastable states decay much faster than these options suggest.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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