MCQOPTIONS
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| 1. |
The wavelength of light emitted from second orbit to first orbits in a hydrogen atom is |
| A. | \[1.215\times {{10}^{-7}}m\] |
| B. | \[1.215\times {{10}^{-5}}m\] |
| C. | \[1.215\times {{10}^{-4}}m\] |
| D. | \[1.215\times {{10}^{-3}}m\] |
| Answer» B. \[1.215\times {{10}^{-5}}m\] | |