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प्रश्न
How are side bands produced?
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उत्तर
Side bands are produced during the process of modulation.

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संबंधित प्रश्न
The process of superimposing a low frequency signal on a high frequency wave is_______ .
Define modulation index.
Draw a sketch of a sinusoidal carrier wave along with a modulating signal and show how these are superimposed to obtain the resultant amplitude modulated wave
Due to economic reasons, only the upper sideband of an AM wave is transmitted, but at the receiving station, there is a facility for generating the carrier. Show that if a device is available which can multiply two signals, then it is possible to recover the modulating signal at the receiver station.
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In the block diagram of a simple modulator for obtaining an AM signal, shown in the figure, identify the boxes A and B. Write their function.

In the given block diagram of a receiver, identify the boxes labeled as X and Y and write their functions.

Broadcasting antennas are generally ______.
I-V characteristics of four devices are shown in Figures.
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| (i) | (ii) | (iii) | (iv) |
Identify devices that can be used for modulation.
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