MCQOPTIONS
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MCQOPTIONS
| 1. |
When an electron in a hydrogen atom makes a transition from 2nd excited stated to ground state it emits a photon of frequency/ The frequency of photon emitted when an electron of \[L{{i}^{++}}\] makes transition from Ist excited state to ground state is |
| A. | \[\frac{243}{32}f\] |
| B. | \[\frac{141}{32}f\] |
| C. | \[\frac{81}{32}f\] |
| D. | \[\frac{63}{32}f\] |
| Answer» B. \[\frac{141}{32}f\] | |