2 answers:
<span>Answer: 8.90 x 10¹⁴ Hz </span><span /> <span>Explanation: </span><span /> <span>1) Frequency (f) and wavelength (λ) are inversely related. </span><span /> <span>2) The equation is: f = c / λ , where c is the speed of light </span><span /> <span>3) c = 3 x 10⁸ m/s in vacUum </span><span /> <span>4) To make the calculations you need yo use the conversion between nanometers and meters: </span><span /> <span>1 meter = 10⁹ nanometer </span><span>5) Calculations: </span> <span /><span>f = 3 x 10⁸ m/s / 337.1 x 10⁻⁹ m = 8.90 x 10¹⁴ Hz </span><span /> <span>Hz is hertz, the SI unit for frequency and it means cycles per second, that is number of waves per second. </span>
Given : wavelength of Nitrogen laser (∧) = 337.1 nm = 337.1 X 10^-9 m We know that, Energy of photon (E) = hc/∧ = hv where, v = frequency of photon and c = speed of light = 3 X 10^8 m/s Thus, v = c/∧ = (3 X 10^8)/ (337.1 X 10^-9) = 8.899 X 10^14 s-1.Answer : F<span>requency of nitrogen laser = </span>8.899 X 10^14 s-1.
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isotope 2
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