Determine the wavelength of light wave, Chemistry

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Q. Determine the wavelength of light wave?

Ans. The frequency of an infrared wave is 2.07 x 1014Hz. What is the wavelength? 

c = λv

Since we know the speed of light we can just solve for wavelength.

1313_wavelength.gif

Notice how the units cancel leaving us with units of m, for wavelength.

883_wavelength1.gif



Remember to round off to 3 significant digits:

435_wavelength3.gif

Notice that wavelength is a very small number because the frequency was so big.


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