Question

The speed of light is a constant and approximately equal to 300,000,000 meters per second.

Green lasers emit light at a wavelength of 532 nm. However, the material that is used to make most green lasers does not emit light at 532 nm. Instead, it emits light at a different wavelength, and the laser then uses a “frequency doubler.” This doubles the frequency of the emitted light, and the resultant light is the green 532 nm that we observe.

1 meter is equal to 1,000,000,000 nanometers.

What is the output light frequency of the material used before doubling?

Answer 1

To find the output light frequency of the material used before doubling, divide the speed of light by the wavelength.

Step-by-step explanation:

To find the output light frequency of the material used before doubling, we need to understand the relationship between wavelength, frequency, and the speed of light. According to the equation c = fλ, where c is the speed of light, f is the frequency, and λ is the wavelength, we can rearrange the equation to solve for the frequency. The given wavelength is 532 nm, which is equivalent to 0.532 μm. Convert this to meters by dividing by 1,000,000,000. Then, divide the speed of light (3x10^8 m/s) by the wavelength to find the frequency. The output light frequency of the material used before doubling is approximately 563.91 THz.