A light wave travels at a speed of 3.0 * 108 meters/second. If the wavelength is 7.0 x 10-7 meters, what is the freq

2.5 x 10-14 hertz

B. 4.3 * 1014 hertz

C.

1.7 * 10-14 hertz

D.

5.1 x 10-14 hertz

B = Frequency = 4.3 * 10¹⁴Hz

Explanation:

Given dа ta:

Speed of light = 3 * 10⁸ ms⁻¹

Wavelength of light = 7.0 * 10⁻⁷ m.

Frequency = ?

Solution:

Formula:

Speed of light = wavelength * frequency

Frequency = Speed of light / wavelength

Frequency = 3 * 10⁸ ms⁻¹ / 7.0 * 10⁻⁷ m.

Frequency = 0.43 * 10⁸⁺⁷ s⁻¹

Frequency = 0.43 * 10¹⁵s⁻¹

s⁻¹ = Hz

Frequency = 4.3 * 10¹⁴Hz