COMEDK · Physics · 31. Communication System
A repeater in TV transmission is
- A only a receiver
- B only a transmitter
- C a receiver and a transmitter
- D demodulator
Answer & Solution
Correct Answer
(C) a receiver and a transmitter
Step-by-step Solution
Detailed explanation
Repeater is used between a receiver and a transmitter to extend transmission of radiowaves in communication system, so that signal can cover longer distances or be received on the other side of an obstruction.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- If \(M\) is the mass of the earth and \(R\) its radius, the ratio of the gravitational acceleration and the gravitational constant isCOMEDK 2017 Easy
- A wire '\(l\)' m long bent into a circular loop is placed perpendicular to the magnetic field of flux density \(B \text{ Wbm}^{-2}\). Within 0.1sec, the loop is changed into a square of side '\(a\)' m and flux density is doubled. The value of e.m.f. induced isCOMEDK 2024 Medium
- The resistance of the galvanometer and shunt of an ammeter are \(90 \mathrm{~ohm}\) and \(10 \mathrm{~ohm}\) respectively, then the fraction of the main current passing through the galvanometer and the shut respectively are:COMEDK 2024 Easy
- The function \(y=\log \omega t\) can representCOMEDK 2021 Easy
-
What is the charge on \(15\mu F\) in the circuit given?COMEDK 2026 Medium - Several lamps of \(50 \mathrm{~W}\) and \(100 \mathrm{~V}\) rating are available. How many of them can be connected in parallel across a battery of a \(120 \mathrm{~V}\) of internal resistance \(10 \Omega\), so that all bulbs glow in full power?COMEDK 2015 Medium
More PYQs from COMEDK
- In an experiment to determine the period of a simple pendulum of length 100 cm , it is attached to different spherical bobs have uniform mass distribution. If the relative difference in the periods is found to be \(5 \times 10^{-4} \mathrm{~s}\), the difference in radii \(\left|r_1-r_2\right|\) is best given byCOMEDK 2024 Easy
- \({ }_{6} \mathrm{C}^{14}\) and \({ }_{7} \mathrm{~N}^{15}\) are the examples ofCOMEDK 2016 Easy
- One among the 4 Vitamins belonging to \(\mathrm{B}\) Complex, can be stored in our body. Identify the Vitamin.COMEDK 2023 Easy
- Choose the incorrect statement:COMEDK 2023 Easy
- The acceleration due to gravity at pole and equator can be related asCOMEDK 2024 Easy
- Which of the following options represent the correct composition of dettol?COMEDK 2021 Easy