Question

If light has a frequency of 4.74 x 10 to the 11th power Hz. what is the wavelength of the light?

Answer 1

Wavelength = 6.33 × 10⁻⁴ m

Step-by-step explanation:

We must use the formula:

Wave speed (v) = Frequency (f) × Wavelength (λ)

All electromagnetic waves have a speed of 3.0 × 10⁸ m/s

So substitute the values into the formula.

3.0 × 10⁸ = 4.74 × 10¹¹ × λ

λ = (3.0 × 10⁸) ÷ (4.74 × 10¹¹)

λ = 6.33 × 10⁻⁴ m