We have been that frequency (y) varies inversely with wavelength (x).
We know that two inversely proportional quantities are in form [tex]a=\frac{k}{b}[/tex], where a is inversely proportional to b and k is constant of variation.
Our required equation would be [tex]y=\frac{k}{x}[/tex].
To find frequency of blue light, we will substitute [tex]k=175,720[/tex] and [tex]x=230[/tex] in our equation as:
[tex]y=\frac{175,720}{230}[/tex]
[tex]y=764[/tex]
Therefore, the frequency of blue light is 764.
