q29:

29. H+, He+ and O++ are projected in uniform transverse field with equal accelerating potential, then ratio of their radii are respectively if their masses are 1 a.m.u., 4 a.m.u. and 16 a.m.u. respectively:-

1   1   :   2   :   2 2                       2   1   :   2   :   2 3   1   :   2   :   2 2                             4   2   :   2     :   1

 

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