An optical fiber communication system uses infrared light with a wavelength of 1500 nm . What is the frequency of the electromagnetic radiation used in this system? (Given: speed of light, c = 3.0 10^8 m s ⁻¹ )

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Correct answer: C. 2.0 10¹⁴ Hz

Given wavelength = 1500 nm = 1500 10⁻⁹ m = 1.5 10⁻⁶ m Speed of light c = 3.0 10^8 m s ⁻¹ The frequency is given by the relation c = = c = 3.0 10^8 1.5 10⁻⁶ = 2.0 10¹⁴ Hz Answer: 2.0 10¹⁴ Hz

An optical fiber communication system uses infrared light with a wavelength of 1500 nm . What is the frequency of the electromagnetic radiation used in this system? (Given: speed of light, c = 3.0 10^8 m s ⁻¹ )

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