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Q. State any three uses of IR rays.
(a) Infrared lamps are utilized in physiotherapy.
(b) Infrared photographs are utilized in weather forecasting.
(c) As infrared radiations aren't absorbed by thick fog, air, mist and so on they are used to take photograph of long distance objects.
(d) Infra red absorption spectrum is utilized to study the molecular structure.
what do you mean by retardation plates?explain their functioning by taking an example of a quarter wave plate
I have a circuit and using Kirchhoff''s second law I need to find the current across one of the battery. How should I do that?
Why can''t an alpha particle touch the periphery of nucleus?
what is the electric field when both the charges are same in dipole
Regard as two charged particles. At a given separation every particle exerts a force of 12 N on the other. What force does every one exert on the other after someone moves the part
A block goes on a wedge which in turns goes on a horizontal table, as given in figure. The wedge angle is Φ. As long as the wedge is in met with table, we have the trivial const
Describe coefficient of self induction, coefficient of mutual induction. What types of transformer is used in a bed lamp.
Q. Define: Thomson effect. Thomson recommended that when a current flows through unequally heated conductors heat energy is absorbed or evolved throughout the body of the meta
Surface Imperfection: These are two dimensional and refer to a region of distortions that lies around a surface having a thickness of a some atomic diameters.
Q. What do the negative sign tell you about the image? A single lens is utilized to form an image of an actual physical object. You compute the image position i and find that
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