wavelength of light waves range from 400 nm in the violet to about 700 nm in the red what is the range of frequency of light waves the speed of electromagnetic wave is in vacuum is 3 into 10 to the power 8 m per second
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For Violet, Wavelength = 400 nm = 4 x 10^-7 m
For Red, Wavelength = 700 nm = 7 x 10^-7 m
We know that,
Speed of EM Waves (c) = Frequency x Wavelength
For Violet, Frequency = c / Wavelength
= 3 x 10^8 / 4 x 10^-7
= 0.75 x 10^15 Hz
For Red, Frequency = c / Wavelength of Red
= 3 x 10^8 / 7 x 10^-7
= 0.42 x 10^15 Hz
Hope this Helps!
For Red, Wavelength = 700 nm = 7 x 10^-7 m
We know that,
Speed of EM Waves (c) = Frequency x Wavelength
For Violet, Frequency = c / Wavelength
= 3 x 10^8 / 4 x 10^-7
= 0.75 x 10^15 Hz
For Red, Frequency = c / Wavelength of Red
= 3 x 10^8 / 7 x 10^-7
= 0.42 x 10^15 Hz
Hope this Helps!
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