242 correspond to light of frequenc...
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242 correspond to light of frequency 3x10 Hz. (ii) have wavelength of 0.50 Å. Calculate the wavelength, frequency and wavenumber of a light wave whose period is 2.0 x 100 SA 9. 8 Wboties

JEE/Engineering Exams
Chemistry
Solution
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( T=2 times 10^{-10} mathrm{s} ) frequency ( 2=frac{1}{T}=frac{1}{2 times 10^{-10}} ) [ frac{0}{2}=0.5 times 10^{10} mathrm{W} ] Wavcleigh ( lambda=frac{frac{c}{2}}{sqrt{lambda^{2}} 6 times 10^{-2} mathrm{m}}=frac{3 times 10^{8}}{0.5 times 10^{10}} ) Wave number ( bar{gamma}=frac{1}{lambda}=frac{1}{6 times 10^{-2}} ) [ begin{aligned} overline{mathbb{D}}=0,166 times 10^{2} mathrm{m}^{-1} end{aligned} ]
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