Bissoy.com
Doctors Medicines MCQs Q&A

Which one of the following statements is correct for full amplitude modulation ?

Which one of the following statements is correct for full amplitude modulation ? Correct Answer The spectrum consists of two sidebands (one termed the upper sideband and the other termed the lower sideband).

Amplitude Modulation:

  • Amplitude modulation is a process by which the wave signal is transmitted by modulating the amplitude of the signal.
  • It is often called AM and is commonly used in transmitting a piece of information through a radio carrier wave.
  • Amplitude modulation is mostly used in the form of electronic communication.
  • It is used in many areas of communication such as in portable two-way radios; citizens band radio, VHF aircraft radio, and in modems for computers.
  • Here, the spectrum consists of the upper sideband and the lower sideband.
  • For the mechanism, when amplitude modulation is used there is a variation in the amplitude of the carrier. Here, the voltage or the power level of the information signal changes the amplitude of the carrier. In AM, the carrier does not vary in amplitude.
  • The AM technique is totally different from frequency modulation and phase modulation where the frequency of the carrier signal is varied in the first case and in the second one the phase is varied respectively.

Related Questions

Consider the following types of modulation: 1. Amplitude modulation 2. Frequency modulation 3. Phase modulation 4. Pulse modulation Which of the above modulation are used for telecasting TV programs?
Consider the following statements regarding modulation : 1. The communication systems, where a weak signal is transmitted by the use of a modulation is essential in carrier signal. 2. When the frequency of the high frequency signal is varied in accordance with the intensity of the low-frequency weak signal, the modulation is said to be frequency modulation. 3. The process of recovering original baseband signal from the modulated signal is called phase modulation. Which of the above statements are correct ? 
In Amplitude Modulation, the instantaneous values of the carrier amplitude changes in accordance with the amplitude and frequency variations of the modulating signal.
Maximum Amplitude of an amplitude modulated 10V and minimum amplitude is 5V. Find its modulation index?
Which three statements are true about the operation of a full-duplex Ethernet network?
1. There are no collisions in full-duplex mode.
2. A dedicated switch port is required for each full-duplex node.
3. Ethernet hub ports are preconfigured for full-duplex mode.
4. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
5. The host network card and the switch port must be capable of operating in full-duplex mode.
The charges for a five-day trip by a tourist bus for one full ticket and a half-ticket are Rs. 1440 inclusive of boarding charges which are same for a full ticket and a half-ticket. The charges for the same trip for 2 full tickets and one half-ticket inclusive of boarding charges are Rs. 2220. The fare for a half-ticket is 75% of the full ticket. Find the fare and the boarding charges separately for one full ticket.
Overmodulation (amplitude) occurs when signal amplitude is ___________ carrier amplitude
A wave having an amplitude of 3cm is to be superimposed with another wave of the same amplitude. What should be their phase difference if the net amplitude has to be 0?
In amplitude modulation, amplitude of carrier wave varied according to the
In amplitude modulation, magnitude of side bands is 2ma times the carrier amplitude.