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If λ is wavelength of radio signals to be transmitted, then the length of Hertz antenna is

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Important Questions on Communication Systems

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Gamma Question Bank for Medical Physics>Chapter 25 - Communication Systems>Assignment>Q 27
Modulation is necessary
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Gamma Question Bank for Medical Physics>Chapter 25 - Communication Systems>Assignment>Q 28
The sound waves after being converted into electrical waves are not transmitted as such because -
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Gamma Question Bank for Medical Physics>Chapter 25 - Communication Systems>Assignment>Q 29
The process of superimposing signal frequency (i.e., audio wave) on the carrier wave is known as
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Gamma Question Bank for Medical Physics>Chapter 25 - Communication Systems>Assignment>Q 2
The process of changing some characteristic of a carrier wave in accordance with the intensity of the signal is called -
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Gamma Question Bank for Medical Physics>Chapter 25 - Communication Systems>Assignment>Q 31
Modulation is done in
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Gamma Question Bank for Medical Physics>Chapter 25 - Communication Systems>Assignment>Q 32
"Need for modulation" arises due to which of the following reasons?
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Gamma Question Bank for Medical Physics>Chapter 25 - Communication Systems>Assignment>Q 33
If a carrier wave of 1000 kHz is used to carry the signal, minimum the length of transmitting antenna will be equal to -
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Gamma Question Bank for Medical Physics>Chapter 25 - Communication Systems>Assignment>Q 34
Identify the mathematical expression for amplitude modulated wave: