If the frequency of an electromagnetic wave is 1 × 106 hz what is the wavelength? answer in units of nm.

If the frequency of an electromagnetic wave is 1 × 10⁶, the wavelength of the wave is 300nm.

HOW TO CALCULATE WAVELENGTH:

λ = v/f

λ = 3 × 10⁸ ÷ 1 × 10⁶

λ = 3 × 10⁸-⁶

λ = 3 × 10²nm

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Explanation:

The speed of light (electromagnetic wave) is given by the following formula:

(1)

Where:

is the speed of light  

the frequency

the wavelength

So, we have to find from (1):

  (2)

But we are asked to find the wavelength in nm. If we know , then:

Finally:

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