Determine the frequency of light with a wavelength of 4.644 * 10-7 cm

6.456 x 10^16 Hz

Explanation: The speed of light, 2.998 * 10^8 m/s Speed of a wave is calculated by multiplying the wavelength by the frequency of the wave.

That is, c = v*λ

The wavelength, λ is 4.644 * 10^-7 cm

But, 1 m = 100 cm

Thus, the wavelength, λ = 4.644 * 10^-9 m

Rearranging the formula; v = c/λ

Therefore;

Frequency, v = 2.998 * 10^8 m/s : 4.644 * 10^-9 m

= 6.456 x 10^16 Hz

Thus, the frequency of the light will be 6.456 x 10^16 Hz