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The amplified video signals are amplitude modulated using a suitable r.f. carrier wave in a transmitter called ‘AM' picture transmitter. Similarly, the amplified audio signals are frequency modulated using another r.f. carrier wave of higher frequency in a transmitter called ‘FM' sound transmitter.
These video and audio modulated carrier waves together are fed to the transmitting antenna on a tower. The transmitting antenna broadcasts the combined signal radiation into space.
A sled and its rider, with a total mass of 95 kg, are perched on top of a 25-m-tall hill. A second hill is 12 m tall (see the diagram below). The rider is given an initial push
Construction & chemical action of Cell: In cells, an electrolyte separates two charge collecting materials called electrodes, to which external connections are made. The electr
In thermodynamics term what is the meaning of the following terms? a) closed and Open systems b) Extensive and Intensive properties.
Two tiny objects with equal charges of 71.0 µC are placed at two corners of a square with sides of 0.340 m, as shown. How far above and to the left of the corner of the square labe
the numerical ratio of displacement to the distance covered is always ???????????????
Q. Distinguish between interference and diffraction fringes? Interference Diffraction 1) It is because of the superposition of secon
Are fibers optics systems expensive? To find out whether a system is expensive one would have to establish a comparison with an option, which in most cases doesn't exist. To co
the difference and examples of kinematic in one dimension from two dimension?
Car Rear Ends Truck Collisions among objects are governed through laws of momentum and energy. While a collision occurs within an isolated system, the total momentum of the sys
Demonstrating how the angle of the sun's rays changes from day to day at the same hour Cut a 1-cm round hole in a piece of paper or cardboard. Place this in a south window of y
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