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In amplitude modulation, carrier wave fr...

In amplitude modulation, carrier wave frequencies are:

A

lower compared to those in frequency modulation.

B

higher compared to those in frequency modulation.

C

same as in frequency modulation.

D

lower sometimes and higher sometimes to those in frequency modulation

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To solve the question regarding the carrier wave frequencies in amplitude modulation (AM), we can break down the explanation into clear steps: ### Step-by-Step Solution: 1. **Understanding Modulation Types**: - There are three primary types of modulation: Amplitude Modulation (AM), Frequency Modulation (FM), and Phase Modulation (PM). In AM, the amplitude of the carrier wave is varied in accordance with the information signal. 2. **Characteristics of AM**: - In amplitude modulation, the carrier wave is modulated by the information signal, which means that the amplitude of the carrier wave changes based on the information being transmitted. 3. **Comparison of Frequencies**: - The frequencies used in AM are generally lower than those used in FM. This is due to the nature of how information is transmitted and the bandwidth required for each type of modulation. 4. **Frequency Ranges**: - The typical frequency range for AM broadcasting is between 535 kHz to 1605 kHz (kilohertz). - In contrast, FM broadcasting typically operates in the range of 88 MHz to 108 MHz (megahertz), which is significantly higher than the AM range. 5. **Conclusion**: - Therefore, we conclude that in amplitude modulation, the carrier wave frequencies are lower compared to those in frequency modulation. ### Final Answer: In amplitude modulation, carrier wave frequencies are lower compared to those in frequency modulation. ---
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