A beam of light has a wavelength of 24.0 μm (μm = 10 - 6m). What is its frequency?

Choices:

a. 1.25 x 1013 Hz

b. 8.00 x 10-8 Hz

c. 1.25 x 107 Hz

d. 8.00 x 10-11 Hz

Frequency = 1.25 * 10¹³ Hz

Explanation:

Given dа ta:

Wavelength of light = 24.0 μm (2.4 * 10⁻⁵ m)

Frequency = ?

Solution:

Formula:

Speed of light = wavelength * frequency

Speed of light / wavelength = frequency

Frequency = 3*10⁸ m / s / 2.4 * 10⁻⁵m

Frequency = 1.25 * 10¹³ s⁻¹

s⁻¹ = Hz

Frequency = 1.25 * 10¹³ Hz