Question

The wavelength of light from an electronic billboard is 4.89
x 10^10 m. What is the frequency of this light?

Answer 1

Answer:

Frequency = 6.13x10⁻³s⁻¹

Explanation:

The wavelength is defined as the ratio between speed of light (3x10⁸m/s) and the frequency of the wave:

Wavelength = Speed of light / frequency

Frequency = Speed of light / wavelength

Frequency = 3x10⁸m/s / 4.89x10¹⁰m

Frequency = 6.13x10⁻³s⁻¹