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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.
Electrons and holes in semi-counductor Metals have free electrons available in conduction band for conduction of electric current. As the valence band overlaps the conduction b
Q. Write the applications of a capacitor. Applications of capacitors. (i) They are utilized in the ignition system of automobile engines to eliminate sparking. (ii) They a
A toy car with a mass of 0.75 kg is pulled3.2 m across the floor with a constant force of 110 N. If 67 J of work is done, what is the upward angle of the force?
why The magnitude of known potential difference must be greater than the value of unknown potential difference to be measured.
concave grating and rowland''s mounting theory
The truss shown below supports is fastened to the supports at A & E. Each member of the truss is made of the same uniform material that has a weight in kiloNewtons per metre (kN/m
Q. A small pin fixed on a table top is viewed from above from a distance of 50 cm. By what distance would the pin appear to be raised if it is viewed from the same point through a
What is Equipotential Surface Equipotential Surface - surface of constant potential. No work is required in moving charges with such a surface. Electric fields are perpend
Magnetic lines of flux A line of flux is a line indicating the direction in which a free north pole would travel, if placed in the field at that point. Alternatively it
How many types does heat transfer? There are three ways of heat tranfer. a) Conduction (transfer of heat among objects in direct contact) b) Convection (transfer of he
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