Technology · Topic 55 of 59
Lasers
⭐ MasteredA laser makes a very narrow, bright beam of light in which all the waves are the same colour and move together. Lasers are used in barcode scanners, surgery and to read discs.
💡 Fun fact
The word laser stands for light amplification by stimulated emission of radiation.
All about Lasers
A laser makes a narrow, bright beam of light in which the waves share one colour and move together. Lasers are used in barcode scanners, surgery and in cutting materials.
The word laser is short for light amplification by stimulated emission of radiation.
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Real-life uses of Lasers
- Scanning barcodes
- Performing precise surgery
- Cutting metal and wood
Frequently asked questions about Lasers
What is special about laser light?
It is a narrow, focused beam of one colour.
Where is a laser used?
In barcode scanners.