Night vision cameras use

The correct answer is Infrared radiation.

Key Points

• Night vision cameras primarily use infrared radiation to capture images in low-light or complete darkness conditions.
• These cameras can detect heat emitted by objects, converting it into a visible image.
• They are commonly used in military, security, and wildlife observation applications.
• Night vision technology enhances visibility by amplifying available light or using thermal imaging techniques.
• Infrared radiation is a part of the electromagnetic spectrum, just beyond the visible light range.

Additional Information

• Infrared Radiation: Electromagnetic radiation with wavelengths longer than visible light but shorter than microwaves, typically ranging from 700 nanometers to 1 millimeter.
• Types of Night Vision:
  • Image Intensification: Amplifies existing light (such as moonlight or starlight) to create a clearer image.
  • Thermal Imaging: Detects infrared radiation emitted by objects, allowing visibility in total darkness.