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Modulation is the process of superimposing message signal on carrier wave. Need:· Prevent signal loss· Allow long-distance transmission · Reduce antenna size
· Kirchhoff’s Current Law (KCL): Total current entering a junction = total current leaving.· Kirchhoff’s Voltage Law (KVL): Algebraic sum of all potential differences in a closed loop is zero. Used i...
· Two fundamental laws govern reflection.The angle of incidence (I) equals the angle of reflection (r).At the point of incidence, the incident ray, reflected ray, and the normal to the reflecting surface lie i...
The convex lens's focal length cannot be reduced by a more significant amount. This is because making lenses having tiny focal lengths is not easy. Spherical and chromatic aberrations are created by a convex le...
Yes, the angular magnification varies. When the length between the eye and a magnifying glass rises, the angular magnification reduces slightly because the subtended angle at the eye is imperceptibly less than the le...
Though the image size is larger than the object, the angular size of the image is equivalent to the angular size of the object. A magnifying glass supports one seeing the objects closer than the least distance of dist...
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