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

Balloon experiment, Another balloon experiment Stretch a rubber balloon...

Another balloon experiment Stretch a rubber balloon over the neck of a little bottle. Place it in the receiver jar and delete some of the air with the pump. What happens? How d

The important physico-chemical properties of thiamin, The important physico...

The important physico-chemical properties of thiamin are as follows: a) Thiamin hydrochloride is a white, needle-shaped crystalline substance. b)  It has a characteristic sm

Earths magnetism, what is the cause of earth''s magnetism?

what is the cause of earth''s magnetism?

Effects of global warming, Effects of Global warming ñ Alterations in ...

Effects of Global warming ñ Alterations in the Global Precipitation: A more warm atmosphere will contribute to enhanced evaporation from surface waters and leads to the more

Metals and non metals, Observe how a metal tyre is fitted on the wheel of b...

Observe how a metal tyre is fitted on the wheel of bullock cart

Explain the circumvallate papillae, Explain the Circumvallate papillae: ...

Explain the Circumvallate papillae: These are the largest of the papillae, about 8 to 12 in number. These are arranged in a V-shape.

Cosmic distances, Cosmic Distances: If  we asked you what the distanc...

Cosmic Distances: If  we asked you what the distance between Delhi and Kanyakumari is, you would say that it  is roughly 3000 km. Another way of answering the question would

What are the effects of soil aeration, Effects of Soil Aeration Some s...

Effects of Soil Aeration Some soil pores are full of O 2 and/or CO 2 gas.  These gases take part in the respiration of plants. We know that respiration involves the oxidatio

Discuss the important gastro intestinal procedures, Question 1 Explain ...

Question 1 Explain the following disorders a) Thalassemia b) Hemophilia c) Tetralogy of Fallot d) Ac

Aluminum, What are some properties that the element contain.

What are some properties that the element contain.

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