Back to COMMUNICATION SYSTEMS

NEET UG PHYSICS MCQ: COMMUNICATION SYSTEMS

1 Medium

1 of 1

Application +4 | -1

If the area to be covered for TV telecast is doubled, then height of transmitting antenna (TV tower) will have to be

View answer and explanation

Correct option: A

Doubled

Option A (Doubled) is correct because the area covered is proportional to the height of the transmitting antenna.

More Questions from COMMUNICATION SYSTEMS

Practice All Chapter MCQs →

In the communication systems, AM is used for broadcasting because The maximum and minimum voltage of an amplitude modulated signal are

60 \mathrm{~V}

20 \mathrm{~V}

respectively. The percentage modulation index will be: Depth of modulation

\left( {{m_a}} \right)

{{\text{E}}_{{\text{max}}}}\,{\text{and}}\,{{\text{E}}_{{\text{min}}}}

is The process of superimposing signal frequency (i.e., audio wave) on the carrier wave is known as The antenna current of an AM transmitter is 8 A when only the carrier is sent, but it increases to 8.93 A when the carrier is modulated by single sine wave. Find the percentage modulation. An audio signal of amplitude one half the carrier amplitude is used in amplitude modulation. Calculate the modulation index?