He-Ne Laser Frequency Calculation

Frequency Calculation

The red light emitted by a He-Ne laser:

Wavelength (λ) = 633 nm = 633 x 10^-9 m

Speed of light (c) = 3.00 x 10⁸ m/s

Frequency (f) can be calculated using the formula: f = c/λ

Explanation

Given information:

Wavelength (λ) = 633 x 10^-9 m

Speed of light (c) = 3.00 x 10⁸ m/s

The relationship equation between speed of light, frequency, and wavelength is c = fλ.

To find the frequency (f), rearrange the equation to f = c/λ.

First, convert the wavelength from nanometers (nm) to meters (m) by multiplying by 10^-9 to get 633 x 10^-9 m.

Substitute the values of c = 3.00 x 10⁸ m/s and λ = 633 x 10^-9 m into the formula: f = 3.00 x 10⁸ / 633 x 10^-9 = 4.74 x 10^14 Hz.

Therefore, the frequency of the red light emitted by the He-Ne laser is 4.74 x 10^14 Hz.