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Question

Match the following lists :

List -I List - II
a. Power efficient transmission of signalsi. AM
b. Bandwidth efficient transmission of signals with significant dc signalsii. VSB
c. Most bandwidth efficient transmission of voice signalsiii. SSB-SC
d. Simplest Receiver Circuitiv. FM

 

Correct Codes are :

This question was previously asked in
UGC NET 2016 Paper 3 Electronic Science Question Paper (10-Jul-2016)
The correct answer is

a-iv, b-ii, c-iii, d-i

To solve this matching problem, we need to understand the characteristics of different modulation schemes listed in List-II and their applications as described in List-I.

Let's analyze each option:

  1. Power efficient transmission of signals: - Frequency Modulation (FM) is generally known for being power-efficient as it keeps the amplitude constant and only changes the frequency of the carrier wave. Hence, the correct match is FM for power efficiency. - Correct match: a-iv.
  2. Bandwidth efficient transmission of signals with significant DC signals: - Vestigial Sideband Modulation (VSB) is often used for television broadcasting because it conserves bandwidth effectively while allowing the transmission of DC and low-frequency signals. - Correct match: b-ii.
  3. Most bandwidth efficient transmission of voice signals: - Single Sideband Suppressed Carrier (SSB-SC) is extremely bandwidth-efficient compared to other analog modulation schemes, as it transmits only one sideband and does not waste power on an unneeded carrier. - Correct match: c-iii.
  4. Simplest Receiver Circuit: - Amplitude Modulation (AM) requires the simplest receiver circuit because it needs only a basic diode for demodulation. - Correct match: d-i.

Based on the explanation above, the correct combination of matches is a-iv, b-ii, c-iii, d-i, which corresponds to the given correct answer.

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Similar Questions

  1. Match the following lists :

    List – IList – II  
    a. PCMi. Slope overload distortion
    b. DMii. Constant carrier frequency
    c. AMiii. Encoding
    d. TDMiv. Commutator

    The correct match is :

  2. Match the following :

    List – I  List – II
    a. DSB-SC modulationi. envelope detection
    b. SSB-modulationii. Foster Seeley
    c. AM-demodulationiii. Weaver's method
    d. Phase-shift detectioniv. Balanced modulator

    Codes :

  3.   Match the following :

    List – I List – II
    a. Power efficient transmissioni. SSB-SC
    b. Most bandwidth efficient transmission of voice signalii. VSB
    c. Simplest receiveriii. FM
    d. Bandwidth efficient transmission of signals with significant d.c. componentiv. AM

    Codes :

  4. Match List - I with List - II.

    List - IList - II  
    (A) White noise(I) Reduces antenna height
    (B) RMS noise voltage(II) \(P_{C}\left(\dfrac{m^{2}}{2}\right)\)
    (C) Modulation(III) Inversely proportional to \(\sqrt{T}\)
    (D) PDSBSC(IV) Johnson Noise

    Choose the correct answer from the options given below :

  5. Match the following lists :

    List - IList - II
    a) i) Frequency modulated detector
    b) ii) Pre-emphasis
    c)  iii)  Amplitude modulator
    d) iv) Amplitude detector

    Choose the correct answer from the codes given below:

  6. Arrange in order of the increasing Bandwidth value for the below mentioned systems :

    (a) DSB-SC      (b) VSB      (c) FM       (d) SSB

    Codes :


Important Questions from Modulation

  1. Combining the low frequency signal with very high frequency radio wave is called
  2. During the heterodyne process in the receiver, the modulation of the signal __________

  3. Which of the following modulations is used in India for radio transmission?

  4. Which of the following is a result of over-modulation?
  5. Which of the following statements are correct?

    A. DSB‐SC modulation is well suited for point to point communication involving one transmitter and one receiver.

    B. VSB modulation is a linear modulation scheme.

    C. SSB is a non‐linear modulation scheme.

    D. FM is a linear modulation scheme.

    Choose the correct answer from the options given below:

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