# physical science

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Green light has a frequency of about 5.3Hz~10Green light has a frequency of about 5.3Hz~ 10^{14}.
Using the relationship speed of light (c)=fƒÉ find its wavelength in air.

• physical science -

Period = 1/f = (1/5.3)10^-14 seconds

distance = speed * time

lambda = 3*10^8 m/s * (1/5.3)* 10^-14

= .566 * 10^-6 meters

= 566 * 10^-9 meters

10^-9 meters is nanometers, usually used for visible light wavelength

• physical science -

767

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