Glossary
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Properties of laser

Laser light is monochromatic, directional and coherent

• Monochromatic - means of one wavelength. In contrast, ordinary white light is a combination of different wavelengths.
• Directional- laser light is emitted as a narrow beam and in a specific direction. This property is referred to as directionality.
• Coherent - The light from a laser is said to be coherent. This means that the wavelengths of the laser light are in phase.