The red line observed in the line spectrum for hydrogen has a wavelength of 656 nm.What is the frequency of this light in hertz (s^-¹)? A)4.57 x 10⁵ s^-¹ B)4.57 x 10¹⁴ s^-¹ C)2.18 x 10^-6 s^-¹ D)2.18 x 10^-¹³ s^-¹ E)1.97 x 10² s^-¹

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The correct answer is A.The frequency of light is given by the equation f = c/λ, where f is the frequency in hertz, c is the speed of light (2.998 x 10^8 m/s), and λ is the wavelength in meters.Converting the wavelength from nanometers to meters:656 nm = 656 x 10^-9 mPlugging the values into the equation:f = (2.998 x 10^8 m/s) / (656 x 10^-9 m) = 4.57 x 10^14 HzTherefore, the frequency of the red line in the line spectrum for hydrogen is 4.57 x 10^14 Hz.

The Red Line Observed in the Line Spectrum for Hydrogen