JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

1 Easy

1 of 1

Application +4 | -1

The radius of first Bohr's orbit for hydrogen is

0.53 \mathop {\text{A}}\limits^ \circ

. The radius of third Bohr's orbit would be

View answer and explanation

Correct option: D

4.77\mathop {\text{A}}\limits^ \circ

Option D (

4.77\mathop {\text{A}}\limits^ \circ

) is correct because the radius of the nth Bohr orbit is proportional to

n^2

, so the third orbit's radius is 9 times the first.

More Questions from STRUCTURE OF ATOM

Practice All Chapter MCQs →

n^{\text {th }}

\mathrm{A}

\times 10^{12}

\frac{1}{{ }^{\prime} \mathrm{B}^{\prime}}

\ell = 1,\,\,m = 0

1.25 \times {10^{ - 13}} \times {A^{1/3}}\mathrm{cm}.