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
Show/Hide Answer
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
Show/Hide Answer
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
Show/Hide Answer
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 |
