lasers used for surgery are often on for only a very small fraction of a second at a time. true or false ?
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It is true. When lasers are used for surgeries, then the laser is applied for a small fraction of a second.
The limited range of application does not cause any harm to the body.
There have been various types of lasers that have been developed with infrared variations.
Laser actually stimulates atoms and molecules to dissipate much-needed light at a variation of certain wavelength.
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