Answer:
[tex]f=7.02*10^15[/tex]
Explanation:
We are supposed to find the frequency of light .
λf=c
the abow formula is the relation for frequency and wavelength.
Here c is the speed of light.
[tex]c=3*10^9m/s[/tex]
Given that
λ= [tex]4.27 * 10^-7[/tex]
by substituting all this we get f as,
[tex]f=\frac{3*10^9}{4.27 * 10^-7}[/tex]
[tex]f=7.02*10^15[/tex]