The wave length of a wave is 100 nm. Find its frequency. – InterviewSolution

1.

The wave length of a wave is 100 nm. Find its frequency.

Answer»

Wave length (λ) = 100 mm

= 100 x 10^-9 m = 10^-7 m

Speed of light (c) = 3 x 10⁸ m/s

We know c = vλ ⇒v = c/λ = 3 x 10⁸/ 10^-7

= 3 x 10¹⁵ Hertz.

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