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Scanning is process of dividing an image on the screen into a large number of very small squares formed by sets of horizontal and vertical straight lines.
Iconoscope is used for the purpose of scanning. It is a type of camera consisting of a cathode ray beam and a photoelectric cell. It is focussed onto an object to be televised. The image of the object formed by the lens of a camera is focussed onto a screen. On the screen, the image is divided into a very large number of every small squares formed by sets of horizontal and vertical straight lines. This process is called scanning
Suppose you blow the top of a bottle and hear a resonance sound (standing wave). The length of the bottle is about 25cm. If the speed of sound in air is about 340 cm/sec., what i
Draw the final image formed by two lenses: An optical imaging system consists of two positive lenses (L1 and L2). L1 has a focal length f 1 = 10 cm, and L2 has a focal length
What do you mean by dispersion? Describe a physical quantity which depends only on the material of the prism for its dispersion. Get an expression for it.
Define coherence and explain temporal and spatial coherence. Show that visibility is a maxim of coherence. Define the 'Q' factor for a spectral line. Explain coherence length and c
What are the types of fibre optics?
How a CPH products? Answer; no time has passing of a CPH. Thus, CPH exists and never decay.
It describes the temperature above which the material loses its spontaneous polarization and piezoelectric characteristics.
Q. Describe the isotopes? Answer:- An atom of an element that has a diverse number of neutrons in its nucleus to other atoms of the element.
susceptibility by quink''s method
A mass M moves horizontally along a smooth rail. A pendulum is hung from M with a weightless rod and mass m at its end. Find the eigen frequencies and describe the normal modes
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