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 10⸠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 10⸠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 10⸠m/s and λ = 633 x 10^-9 m into the formula: f = 3.00 x 10⸠/ 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.