how to find the wavelength of the radiation when the ionization energy of hydrogen is iven

Dear abi ram,

It is simple to find the Wavelength of the Radiation if the Ionisation Energy of Hydrogen is given ..

I.E = 13.6 * Z²/n²

Now here Z=1 ,Since it is a Hydrogen atom !

n is the energy level in which it is present !!

But according to you the Value of Ionisation Energy is given so , you have the I.E Value !

Now, Ionisation Energy = hc/λ where h is the planks constant & c is the velocity of the light !!

hc = 19.8 * 10^-26

Now you can easily get the Value of λ(Wavelength) ...

Hope thishelped you immensely..!

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basically       E=hv    v can be written in terms of wavelenth

       wavelength=frequency(v)/sppeed of light