Wavelength for n=1 is lamda=388.9pm
Wavelength for n=1 is lamda=194.5pm
Wavelength for n=1 is lamda=129.6pm
Wavelength for n=1 is lamda=97.2pm
Wavelength for n=1 is lamda=77.8pm
For n=1,2,3 and >5 lamda lies beyond the range of wavelengths of polychromatic source