Question

( frac{1}{1} cdot ln left[frac{1}{2^{2}} cdot frac{1}{n^{2}}right] )
( frac{1}{n^{2}} cdot frac{1}{4}-frac{1}{2 times k_{1}} )
( 2 frac{1}{4}-frac{1}{4341 times 10^{-8} times 109678} )
( 20 cdot 04 )
( n^{2}=110 cdot 04=25 )
( n=5 )

# Example 28. The wavelength of a certain line in Balmer series is observed to be 4341 A. To whaa value of 'n' does this correspond? [Rx = 109678 cm-').

Solution