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Properties of laser:
Lasers have applications in various disciplines of science and technology. They also find applications in industry, medicine and defence and space science.
Important laser characteristic property "temporal coherence" Due to directionality even laser light travel up to 1km its spreads below 1cm diameter only. Due to high intensity 1volt laser is equal to 1000w ordinary bulb.
Beats: The periodic vibrations in intensity or loudness of sound because of superposition of two sound waves of similar amplitude and slightly different frequencies are known a
Illustrate the c-scan presentation of test specimen? C-mode: The C-scan presentation gives a plan-type (2D) view of the location and size of test specimen characteristics. T
What is Heat? We now have several scales for measuring temperature, but first let's ask, “Is temperature the same as heat?” If I add heat to a pot of water, the water's temperatu
Brackett series (Brackett) This is the series that describes the emission spectrum of hydrogen while the electron is jumping to the fourth orbital. All these lines are in the i
(i) Lead balls are spherical in shape. (ii) Rain leaves and a globule of mercury placed on glass plate are spherical. (iii) Hair of shaving painting brush, when goes in wate
Two waves of equal frequency have amplitudes 2 units and 3 units respectively. When they superpose coherently the intensity of the resultant wave is I 1 . The intens
Explain the Energy and Mass Albert Einstein described an intricate relationship between matter and energy. It is summarized in the famous formula: E = mc 2 In this equ
define biased clipper?
How is plastic fibre material used in optical fibres? Plastic fibre: Plastic fibre is classically made of plastic. Such are low cost optical fibres. They have a huge NA and
As shown in the figure below, a source at S is sending out a spherical wave: E 1 =(A ×D/r) cos( wt-2πr/ λ) ; where r is the distance to source S. In addition, there is anoth
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