What are the unique characteristics of a laser?

A laser is an uncommon source of light that is very distinct from a flashlight or a light bulb. Light moves in the form of waves. The distance between consecutive peaks of a wave is known as the wavelength. Red light has a longer wavelength than blue light. In the case of a lightbulb, it emits light that has many wavelengths. Human eyes perceive this wavelengths’ mixture as white light. A laser is different from most conventional light devices. It only emits a narrow light beam in which all the light have identical wavelengths. The light waves of a laser move jointly with their peaks, all aligned up or in phase. Due to this, lasers have narrow light beams and are bright. This also enables it to be focused on a tiny point. Laser light rays always stay focused and do not scatter out extensively. They can also travel enormous distances and concentrate a huge amount of energy on a very small area.