1.

The radius of the first (lowest) orbit of the hydrogen atom is \[{{a}_{0}}.\] The radius of the second (next higher) orbit will be                                                                   [MP PET 2002; MP PMT 2004]

A. \[4{{a}_{0}}\]
B. \[6{{a}_{0}}\]
C. \[8{{a}_{0}}\]
D. \[10{{a}_{0}}\]
Answer» B. \[6{{a}_{0}}\]


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