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Question
Q265) If r1is the radius of the first orbit of hydrogen atom, then the radii of second, third and fourth orbits in term of r
1
are
a) r
1
2
, r
1
3
, r
1
4
b) 4r
1
, 9r
1
, 16r
1
c) 8r
1
, 27r
1
, 64r
1
d) 2r
1
, 6r
1
, 8r
1
SOLUTION
By substitutingvalues Z = 1
and n = 2, 3 and 4
We get answer 4r
1
, 9r
1
, 16r
1
Answer:(b)