Exciting Facts about Helium-Neon Lasers!

How powerful is a typical helium-neon laser found in supermarket checkout scanners?

1.5 mW

What is the wavelength of light emitted by the helium-neon laser?

633 nm

Answer:

The power of a typical helium-neon laser found in supermarket checkout scanners is 1.5 mW. This laser emits light with a wavelength of 633 nm.

Helium-neon lasers are commonly used in various applications, including barcode scanners in supermarkets. Despite their compact size, these lasers pack quite a punch with a power output of 1.5 mW.

One fascinating characteristic of these lasers is the wavelength of the light they emit. At 633 nm, the light produced by helium-neon lasers falls within the visible spectrum and is commonly used in laser applications that require precision and accuracy.