<PRE><B>Question 218515</B>
What is the wavelength of light that has a frequency of 4.22X 10^15 HZ?


Step 1.  speed of light = wavelength * frequency  where speed of light {{{c=3*10^8}}} meters/sec


Step 2.  wavelength = speed of light/ frequency 


Step 3.  {{{wavelength = 3*10^8/(4.22*10^22)= 7.15*10^(-15)}}} meters


I hope the above steps were helpful.


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And good luck in your studies!


Respectfully,
Dr J</PRE>