You are currently viewing Communication Systems CBSE Class 12 Physics MCQ Questions with Answer Keys Solutions

Communication Systems CBSE Class 12 Physics MCQ Questions with Answer Keys Solutions

If you are preparing for CBSE Class 12 Board Exam Term 1 which will be an objective type questions paper, then you need to practice multiple choice questions of Class 12 Physics Chapterwise. In this article of AKVTutorials, you will get Communication Systems CBSE Class 12 Physics MCQ Questions with Answer Keys Solutions

MCQ Questions for Class 12 Physics Chapter 15 Question No 11:

Repeaters are

A)  Used for extension of bandwidth

B) Combination of transmitter and receiver

C) Used for extension of range

D) Used for modulation

Option A : B and C

Option B : A and D

Option C : A, B and D

Option D : A, B and C

Show/Hide Answer

Option A : B and C

MCQ Questions for Class 12 Physics Chapter 15 Question No 12:

A repeated is a combination of

A) Transmitter

B) Oscillator

C) Amplifier

D) Receiver

E) Transducer

Option A : A, B and D

Option B : A, C and D

Option C : A, B and C

Option D : A, D and E

Show/Hide Answer

Option B : A, C and D

MCQ Questions for Class 12 Physics Chapter 15 Question No 13:

In the process of demodulation, the carrier waves and signal waves are

Option A : Superimposed

Option B : Separated

Option C : Constructively interfered

Option D : Destructively interfered

Show/Hide Answer

Option B : Separated

MCQ Questions for Class 12 Physics Chapter 15 Question No 14:

The largest distance between a source and a destination up to which the signal is received with sufficient is called the

Option A : Mean free path

Option B : Bandwidth

Option C : Skip distance

Option D : Range

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Option D : Range

MCQ Questions for Class 12 Physics Chapter 15 Question No 15:

In an AM modulator, the center frequency of the band pass filter is

Option A : The carrier frequency

Option B : The message frequency

Option C : Sum of message and carrier frequencies

Option D : Difference between the message and carrier frequencies

Show/Hide Answer

Option A : The carrier frequency

MCQ Questions for Class 12 Physics Chapter 15 Question No 16:

The Envelope detector provides a signal at a frequency equal to the

Option A : Carrier frequency

Option B : Message frequency

Option C : Sum of (a) and (b)

Option D : Between (a) and (b)

Show/Hide Answer

Option B : Message frequency

MCQ Questions for Class 12 Physics Chapter 15 Question No 17:

To reproduce the rectangular wave shape of digital signals practically, the harmonic that can be neglected for limiting the bandwidth are

Option A : Fundamental

Option B : First harmonic

Option C : Second harmonic

Option D : Higher order harmonics

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Option D : Higher order harmonics

MCQ Questions for Class 12 Physics Chapter 15 Question No 18:

With respect to digital signals, distortion in the received waves are due to removal of

Option A : First harmonic

Option B : Fundamental frequency

Option C : Higher harmonic

Option D : Second harmonic

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Option C : Higher harmonic

MCQ Questions for Class 12 Physics Chapter 15 Question No 19:

The unit of bandwidth is

Option A : kHz

Option B : km

Option C : kN

Option D : Second

Show/Hide Answer

Option A : kHz

MCQ Questions for Class 12 Physics Chapter 15 Question No 20:

The range of frequency for speed signals is 300Hz to 3100Hz. The bandwidth is

Option A : 3 kHz

Option B : 3.4 kHz

Option C : 28 kHz

Option D : 2.8 kHz

Show/Hide Answer

Option D : 2.8 kHz

CBSE Class 12 Physics Chapterwise MCQ
1 : Electric Charge & Fields MCQs
| 1 to 10 | 11 to 20
2 : Electrostatics Potential and Capacitance MCQs
| 1 to 10 | 11 to 20
3 : Current Electricity MCQs
| 1 to 10 | 11 to 20
4 : Moving charges and Magnetism MCQs
| 1 to 10 | 11 to 20
5 : Magnetism and Matter MCQs
| 1 to 10 | 11 to 20
6 : Electromagnetic Induction MCQs
| 1 to 10 | 11 to 20
7 : Alternating Current MCQs
| 1 to 10 | 11 to 20
8 : Electromagnetic Waves MCQs
| 1 to 10 | 11 to 20
9 : Ray Optics and Optical Instruments MCQs
| 1 to 10 | 11 to 20
10 : Wave Optics MCQs
| 1 to 10 | 11 to 20
11 : Dual Nature of Radiation MCQs
| 1 to 10 | 11 to 20
12 : Atoms MCQs
| 1 to 10 | 11 to 20
13 : Nuclei MCQs
| 1 to 10 | 11 to 20
14 : Semi Conductor Electronics MCQs
| 1 to 10 | 11 to 20
15 : Communication Systems MCQs
| 1 to 10 | 11 to 20

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