What is the wavelength range of Lidar technology?

• A. 350 to 400 nm
• B. 500 to 600 nm
• C. 904 to 905 nm
• D. 700 to 800 nm

Answer: (C)

Lidar technology primarily operates within the near-infrared wavelength range, which is particularly effective for measuring distances and mapping terrain. The correct wavelength range of 904 to 905 nm is commonly used in Lidar applications because it allows for efficient reflection from various surfaces and is also less affected by atmospheric conditions. This wavelength strikes a balance between penetration and detection capabilities, making it optimal for tasks such as speed enforcement and topographical mapping.

The other options fall outside the ideal operating range for Lidar. Wavelengths in the 350 to 400 nm range, for instance, are within the ultraviolet spectrum, which is not suitable for the purposes Lidar serves. Similarly, the 500 to 600 nm range is in the visible light spectrum, and while some Lidar systems can operate in this zone, they are less common for distance measuring applications. Lastly, the 700 to 800 nm range approaches the near-infrared spectrum, but it does not align with the specific wavelengths typically utilized in Lidar technology. Therefore, the choice of 904 to 905 nm accurately reflects the wavelengths most effective for Lidar systems.