Activity 2: Answer the following questions you may use your internet or powerpoint as your guide. (5pts)
1. Give two characteristics of a laser light.
2. What are the uses of laser light in medicine?
3. Why does a laser light capable of cutting very hard objects?
4. Why is it not advisable to aim a toy laser light to the eyes of a person?
5. Why are laser lights not used by vehicles to light the road at night
time?
1. Give two characteristics of a laser light.
2. What are the uses of laser light in medicine?
3. Why does a laser light capable of cutting very hard objects?
4. Why is it not advisable to aim a toy laser light to the eyes of a person?
5. Why are laser lights not used by vehicles to light the road at night
time?
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Answers & Comments
1. Properties of laser light are: monochromacity (the same color), coherence (all of the light waves are in phase both spatially and temporally), collimation (all rays are parallel to each other and do not diverge significantly even over long distances).
2. Lasers are often used to: Treat varicose veins. Improve vision during eye surgery on the cornea. Repair a detached retina of the eye.
3.Laser is just another way to deliver such energy, since the a photon has enough energy to break some bonds and deliver some heat for the molecules that can evaporate. Since cutting is just breaking chemical bonds and removing particles in some specific place, laser has ability to cut.