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Which of the following is not a valid option for modulation of waves?
- a)phase modulation
- b)frequency modulation
- c)amplitude modulation
- d)velocity modulation
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which of the following is not a valid option for modulation of waves?a...
If you want to throw a piece of paper at some distance, say 50 m then what will you do? A very simple solution is that you wrap the paper on the stone and then throw it right. So that is the philosophy of modulation. You modulate the carrier signal (stone) with your information signal (paper) and then throw it using a transmitter so that your information can travel to a longer distance. At the receiver side of the communication system the demodulater separates the information signal from the carrier and then your information signal is processed.
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Which of the following is not a valid option for modulation of waves?a...
Understanding Modulation of Waves
Modulation refers to the process of varying a wave's properties to encode information. The three primary types of modulation are:
Why Velocity Modulation is Not Valid
Velocity modulation, while it sounds plausible, is not a recognized form of wave modulation in the context of conventional communication systems. Here’s why:
In conclusion, while phase, frequency, and amplitude modulation are integral to wave communication, velocity modulation does not fit within the established framework, making it the correct answer.
Modulation refers to the process of varying a wave's properties to encode information. The three primary types of modulation are:
- Phase Modulation (PM): This technique involves changing the phase of the carrier wave. It is commonly used in digital communication systems.
- Frequency Modulation (FM): FM varies the frequency of the carrier wave according to the amplitude of the input signal. This method is widely used in radio broadcasting.
- Amplitude Modulation (AM): In AM, the amplitude of the carrier wave is varied in proportion to the input signal. This is a traditional method used in AM radio transmissions.
Why Velocity Modulation is Not Valid
Velocity modulation, while it sounds plausible, is not a recognized form of wave modulation in the context of conventional communication systems. Here’s why:
- Definition Confusion: Velocity modulation would imply altering the speed at which the wave propagates. However, the speed of a wave in a given medium is typically constant and depends on the medium’s properties.
- Physical Limitations: Altering the velocity of a wave would not effectively encode information in the same way that phase, frequency, or amplitude can. The other modulation techniques focus on the wave's characteristics without changing its speed.
- Applications: The established modulation techniques (PM, FM, AM) have practical applications across various communication technologies, while velocity modulation lacks such applications.
In conclusion, while phase, frequency, and amplitude modulation are integral to wave communication, velocity modulation does not fit within the established framework, making it the correct answer.
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Which of the following is not a valid option for modulation of waves?a)phase modulationb)frequency modulationc)amplitude modulationd)velocity modulationCorrect answer is option 'D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following is not a valid option for modulation of waves?a)phase modulationb)frequency modulationc)amplitude modulationd)velocity modulationCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not a valid option for modulation of waves?a)phase modulationb)frequency modulationc)amplitude modulationd)velocity modulationCorrect answer is option 'D'. Can you explain this answer?.
Which of the following is not a valid option for modulation of waves?a)phase modulationb)frequency modulationc)amplitude modulationd)velocity modulationCorrect answer is option 'D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following is not a valid option for modulation of waves?a)phase modulationb)frequency modulationc)amplitude modulationd)velocity modulationCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not a valid option for modulation of waves?a)phase modulationb)frequency modulationc)amplitude modulationd)velocity modulationCorrect answer is option 'D'. Can you explain this answer?.
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