. The Bohr orbit radius for the hydrogen atom
(n=1) is approximately 0.530Å. The radius for the first excited state (n=2) orbit is (in ň )
(a) 4.77
(b) 1.06
(c) 0.13
(d) 2.12
Best Answer
Correct Option is :(d) R= kn2/z.
Putting the value of R, n and z. We get the value of k as 0.53ň
Substituting it for n=2, we get
R= 0.53 22/1
R= 2.12ň
Hence the correct answer is option 4.
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