A light radiation has a wavelength of 1000 picometers. calculate the frequency and wave number of this radiation
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wave number = 2 π / λ = 2π / 1000*10⁻¹² m = 2 π * 10⁹ rad/m
frequency = 3 * 10⁸/10⁻⁹ = 3 * 10¹⁷ Hz
frequency = 3 * 10⁸/10⁻⁹ = 3 * 10¹⁷ Hz
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