Lasers in nonionising radiations, Science

Assignment Help:

Lasers : Laser light is an extremely intense form of electromagentic radiation and its name is acronym for light amplification by stimulated emission of radiation. Lasers are used widely in industry and research laboratories. Their dangers stem from the enormous concentration of the energy of the laser into a very small area. These extremely short, concentrated pulses of light can cause severe eye damage. Both the cornea and the retina may be affected and permanent blind spots can be produced at the points where the lens of the eye brings the rays to a focus, thereby destroying the tissues at the back of the eye.

This focussing effect of the lens of the eye increases the intensity of the laser light by a factor of about a million (106)so low energy laser light can also be dangerous. In practice the maximum safety value is set at one-tenth of this figure. Additional dangers in the use of the laser stem from the very high voltages required to operate its source.

 


Related Discussions:- Lasers in nonionising radiations

To surveys a lab for its fire preparedness, TO SURVEYS A LAB FOR ITS FIRE P...

TO SURVEYS A LAB FOR ITS FIRE PREPAREDNESS As said earlier in this activity you are going to survey the labs of the institution where you are working at. Look for the fire safe

Name the groups of organs in digestive system, The digestive system is made...

The digestive system is made up of two groups of organs: Alimentary  tract, which  includes mouth, pharynx,  oesophagys,  stomach, small intestine,  large intestine, appendix

Protozoan, what is the scientific classification of a protozoan

what is the scientific classification of a protozoan

Explain the horizons - oap, Explain the following horizons:   i...

Explain the following horizons:   i)   Oap   ii)   Btk i)  Organic horizon (O) with organic material that has undergone decomposition (a) and has been disturbed or

Explain how tongue can sense different tastes, Explain How tongue can sense...

Explain How tongue can sense different tastes? Our tongue can sense different tastes. Do you know which are the basic tastes and the areas where these are sensed? In humans, th

Define the process of soil acidity, Define the process of Soil acidity ...

Define the process of Soil acidity Acid soils are made more suitable for agricultural use by liming which raises the soil pH.  Soil acidity is commonly decreased by adding carb

Health management technology, classification of various qualitative & quant...

classification of various qualitative & quantitative health management technologies

About maths, Is zero an positive integer ?

Is zero an positive integer ?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd