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Applications of Laser:
Due to its properties, laser light can be put to a number of uses in industry, medicine, communications etc. We will briefly describe some of these uses. Because of the high concentratior, of energy, a laser beam can quickly bum tiny holes, a few millimetres wide, even in a strip of steel. Lasers have an advantage over all other traditional methods of cutting and welding. Using lasers you can cut any kind of material. such as paper, plywood, plastic or cloth, as also the hardest of metals, ceranlics and glass with greater efficiency and accuracy. Lasers can, thus, make an ideal tool for metal workers, carpenters and tailors, apart from engineers.
What is Diffraction Diffraction happens at the edge of an impenetrable body that is large compared to the wavelength of the radio wave. The edge in effect become a source and w
we know that if you went out into space and went around... lets say Jupiter for... 100 years you would of aged only 100 years but when you went back to Earth the planet would of ev
Explain Nerve Supply of the Gastrointestinal Tract The gastrointestinal tract is supplied by nerves from both sympathetic and parasympathetic nervous system. The parasympatheti
Explain the Heat loss and Bacteriolytic action Heat loss - This is found in dog, sheep etc. Who do not have sweat glands? In very hot climate, they secrete more saliva (pant
Preparation of Report for an Imaginary Accident In case of serious accidents, accident report has to be sent to the Head of the Institution who may use it for official purposes
How old is the earth Ans) The earth has only very freshly been accurately dated. Until astonishingly recently, the earth was thought to be anywhere among a few hundred thousand
Ask question how many years that our earth survived?#Minimum 100 words accepted#
Moisture from breathing Moisture coming from breathing might be shown by blowing on a cool mirror or into a cool glass or bottle.
Water Pollution Pollution of fresh water is one of the most serious environmental problems of the world as a whole. In our country most of the rivers and lakes are polluted
What is Heart Sounds? Have you ever heard your heart go lub...dub...? What are these sounds? "Lub" is the closing of the atrioventricular valves while "dub" is the closing of
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