Question

(a) What is the frequency of light of 405 nm wavelength?​

Answer 1

 f = 7.4 x 10²⁰s⁻¹

Explanation:

Given parameters:

wavelength of light = 405 x 10⁻⁹m or 405nm

Unknown:

Frequency of light = ?

Solution:

We can solve this problem using the wave equation:

                  V = f∧

where V is the velocity of light = 3 x 10⁸m/s

           f is the unknown frequency

           ∧ is the wavelength of light

          making f the subject:

                   f = $\frac{V}{wavelength}$ = $\frac{3 x 10[tex]^{8}$}{405 x 10$^{-9}$}[/tex]

                   f = 7.4 x 10²⁰s⁻¹

Learn more:

wavelength brainly.com/question/6352445

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