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

Define antidiuretic hormone - posterior pituitary, Define Antidiuretic Horm...

Define Antidiuretic Hormone - Posterior Pituitary Antidiuretic hormone or ADH, also known as vasopressin, is another polypeptide containing 9 amino acids. As the name of the ho

Explain dyes for measurement of plasma volume, Explain Dyes for Measurement...

Explain Dyes for Measurement of Plasma Volume: A number of dyes, commonly known as 'vital dyes', have the ability to combine with proteins. When such a dye is injected into the

Explain coal, What is coal? The remains of trees and shrubs grew milli...

What is coal? The remains of trees and shrubs grew millions of years ago, when the weather was mild and moist.

Anatomy and physiology, a patient diagnosed with HIV. Predict how HIV will ...

a patient diagnosed with HIV. Predict how HIV will impact his total leukocyte count

Mini-mental state examination - mmse test, MMSE To assess Mr. X's orient...

MMSE To assess Mr. X's orientation, language skills, constructional ability, memory, calculation ability, and reasoning, he was administered the Mini-Mental State Examination -

Define edta titrimetric method for estimation of calcium, Define EDTA Titri...

Define EDTA Titrimetric Method for Estimation of Calcium? The amount of calcium in any sample can be estimated by EDTA titrimetric method. The principle behind this method is d

Explain the chemical control of respiration, Explain the Chemical Control o...

Explain the Chemical Control of Respiration Let us now focus on the chemical control of respiration. But before that, let's get to know which chemicals are involved in this pro

Help, physical features of arizona

physical features of arizona

Water-mill in golden era, Water-mill in Golden era: The water-mills wer...

Water-mill in Golden era: The water-mills were also invented in  the classical period. But they came to be widely used only in  the Middle Ages. The wind-mills and water-mills

Procuring and storing animal materials, Procuring and storing animal materi...

Procuring and storing animal materials (i) You can begin by asking for a clarification or reaching a common understanding regarding the oft-used terminology, for instance, anim

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