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Class 10 Class 12

Give Balmer equation.


straight v with bar on top space equals 1 over straight lambda space equals space straight R open square brackets 1 over 2 squared minus fraction numerator 1 over denominator straight n subscript 2 superscript 2 end fraction close square brackets

Give Rydberg equation.


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#6 [internal function]: _hx_lambda->execute('Http Error #404')
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Give an expression to calculate the radius of an orbit.


Expression to calculating the radius of an orbit.
r = 0.529 Å x n
2.

What is the maximum number of lines when an excited electron of a hydrogen atom in n = 5 drops from exicted state to the ground state?


open square brackets because space No. space of space lines space equals space fraction numerator straight n left parenthesis straight n minus 1 right parenthesis over denominator 2 end fraction space equals space fraction numerator 5 left parenthesis 5 minus 1 right parenthesis over denominator 2 end fraction space equals 10 close square brackets
Hence, the maximum number of line is 10.


What is Bohr's radius?


The Bohr radius, symbolized the mean radius of the orbit of an electron around the nucleus of a hydrogen atom at its ground state (lowest-energy level).
Bohr’s radius = 0.529A.