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

Question

An optical fiber communication system uses infrared light with a wavelength of

1500\text{ nm}

. What is the frequency of the electromagnetic radiation used in this system?
(Given: speed of light,

c = 3.0 \times 10^8\text{ m s}^{-1}

)

Quantrex Academy · Accepted Answer

Correct answer: C. 2.0 × 10^ 14 Hz

Given wavelength λ = 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 = λ = (c)/(λ) = 3.0 × 10^8 1.5 × 10^ -6 = 2.0 × 10^ 14 Hz Answer: 2.0 × 10^ 14 Hz

An optical fiber communication system uses infrared light with a...

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