General Awareness

Broadcasting and Television Media

1,553 Questions

Broadcasting and television media questions cover mass communication, signal transmission, and entertainment channels. These topics are frequently included in the general awareness sections of competitive exams. Answer these questions to stay updated on communication technologies.

AM broadcasting frequencyMass communication typesTelevision signal transmissionIndian television channelsDigital versus analog signals

Broadcasting and Television Media Questions

Multiple choice physics communication system elements of a communication system elements of communication system electromagnetic waves and communication system

The modulation frequency of an AM radio station is 250 kHz, which is 10% of the carrier wave. If another AM station approaches you for license what broadcast frequency will you allot ?

  1. 2250 kHz

  2. 2900 kHz

  3. 2750 kHz

  4. 2000 kHz
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

As calculated previously, the carrier frequency is 2500 kHz. The next available channel for an AM station would be 2500 kHz + 250 kHz = 2750 kHz.

Multiple choice physics bharat and science introduction to science contribution of physics in technology and society physics in relation to other sciences

Which of the following satellite can help to telecast TV network programmes all over the country ?

  1. INSAT- $1$B

  2. Apple

  3. Aryabhata

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

INSAT-1B was a major Indian communication satellite launched in 1983, which played a crucial role in expanding television broadcasting and telecommunications across India.

Multiple choice physics free, damped and forced oscillations resonance: examples and uses resonance oscillatory motion

The phenomenon of resonance is used in receiving the radio and television programmes.

  1. True

  2. False

  3. Nither

  4. Either
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is a resonance in the circuit--- when you have a bunch of different

frequencies driving a resonant system, the response is only strong for

those frequencies which are close to the natural frequency of the

resonant oscillator. The frequency dependent amplification  is used to done through the resonance circuit for a desired frequency.

Multiple choice the nature of electromagnetic waves space exploration and forms of light observing space: telescopes electromagnetic waves physics

The ultra high frequency band of radiowaves in electromagnetic waves is used as in

  1. Television waves

  2. Cellular phone communication

  3. Commercial FM radio

  4. Both (b) and (c)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Radio Waves
  • Radio waves are usually in the frequency range from $500\ kHz$ to $1000\ MHz$.
  • TV waves range from $54\ MHz$ to $890\ MHz$.
  • The FM (frequency modulated) radio band is from $88\ MHz$ to $108\ MHz$.
  • Cellular phones also use radio waves to transmit voice communication in an ultra-high frequency $(UHF)$ band.
As given in last point radio waves are used in cellular phone communication. 
Multiple choice geography asia : the largest continent - location and physical features location, political and physical division of asia introduction of the continents - africa and asia asia

Which is the most preferred mode of communication in Asia?

  1. Mobile communication

  2. Internet communication

  3. Satellite communication

  4. Telegram communication
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The most preferred mode of communication in Asia is Mobile communication.

 Asian mobile communication research since the mid-1990s. First, it identifies key research institutes and funding agencies, not only in Asia but also worldwide public (e.g., the Canadian IDRC) and private (e.g., Microsoft) organizations. It then summarizes the areas of research at micro, meso, and macro levels, including their main topics, methods, and findings, and debates that result from the interaction (and lack of it) among diverse scholarly traditions such as survey, policy analysis, ethnography, action research, and comparative studies. Young as it is, mobile communication research is now a most eclectic area of inquiry, reflecting both the diversity of Asian societies and the growing heterogeneity of communication research itself.

Multiple choice wireless connections parts of computer physics

Radio waves and microwaves are examples of _________ communication.

  1. Wired

  2. Guided

  3. Wireless

  4. Office
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Radio waves and microwaves propagate through space without the need for physical cables, making them a form of wireless communication.

Multiple choice wireless connections parts of computer physics

Which of the following is not used for voice communication.

  1. IS -95 system

  2. Global star system

  3. GPS

  4. Iredium system
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

GPS is not used for voice communication.

An early satellite-based system dubbed TRANSIT was up and running as early as 1960, with more refined and precise versions involving multiple satellites in general military use by the early 1980s (pictured, right). But it wasn't until 2000 that precision GPS navigation became open to the public.

The Global Positioning System (GPS) is a network of about 30 satellites orbiting the Earth at an altitude of 20,000 km. ... Once it has information on how far away at least three satellites are, your GPS receiver can pinpoint your location using a process called trilateration.

During Labor Day weekend in 1973, a meeting of about twelve military officers at the Pentagon discussed the creation of a Defense Navigation Satellite System (DNSS). It was at this meeting that the real synthesis that became GPS was created.

GPS (or global positioning system), is a satellite-based navigation system made up of a network of 24 satellites orbiting the earth at all times. This system, when the proper signals are received, allows a user to tell where they are located.

Multiple choice wireless connections parts of computer physics

Which of the following are not telephony services supported by GSM

  1. Dual tone multi frequency

  2. Fax mail

  3. Voice mail

  4. Call waiting
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dual tone multi frequency are not telephony services supported by GSM

DTMF ( Dual Tone Multiple Frequency ) is used to send to signals for button presses on telephones. The data is typically sent over voice channels and so in order to distinguish from human voice , when you hit a button the phone generates two tones of different frequencies - one lower frequency and one high frequency.

DTMF (dual tone multi frequency) is the signal to the phone company that you generate when you press an ordinary telephone's touch keys. In the United States and perhaps elsewhere, it's known as "Touchtone" phone (formerly a registered trademark of AT&T).

GSM is a globally accepted standard for digital cellular communications. GSM uses narrowband Time Division Multiple Access (TDMA) for providing voice and text based services over mobile phone networks.

Multiple choice wireless connections parts of computer physics

Video text is a combination of

  1. Television

  2. Communication

  3. Computer technology

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Video text is a combination of Computer technology

An example of computer technology is the development of a software program that allows people to accomplish work at home which has been automatically assigned from computers at their job location. YourDictionary definition and usage example.

Technical terms are an essential part of all technical and scientific writing. Each field and specialty typically uses a vocabulary that relays a variety of specialized concepts by means of technical language.

Technical terms are an essential part of all technical and scientific writing. Each field and specialty typically uses a vocabulary that relays a variety of specialized concepts by means of technical language.

An IT career involves installing, organizing and maintaining computer systems as well as designing and operating networks and databases. Computer science is focused entirely on efficiently programming computers using mathematical algorithms.

Multiple choice wireless connections parts of computer physics

Telephone companies use ................ to combine voice channels into successively larger groups for efficient transmission.

  1. TDM

  2. FDM

  3. WDM

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Telephone companies use FDM

Frequency-division multiplexing. In telecommunications, frequency-division multiplexing (FDM) is a technique by which the total bandwidth available in a communication medium is divided into a series of non-overlapping frequency bands, each of which is used to carry a separate signal.

Frequency Division Multiplexing (FDM) is a networking technique in which multiple data signals are combined for simultaneous transmission via a shared communication medium. FDM uses a carrier signal at a discrete frequency for each data stream and then combines many modulated signals.

Fused deposition modeling (FDM) is an additive manufacturing (AM) technology commonly used for modeling, prototyping, and production applications as trademarked by Stratasys Inc.. It is one of the techniques used for 3D printing.

Multiple choice classification of computer introduction to the information age physics

For separating channels in FDM, it is necessary to use _______________.

  1. Time slots

  2. Bandpass filters

  3. Differentiation

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

For separating channels in FDM, it is necessary to use  Bandpass filters

A bandpass filter is an electronic device or circuit that allows signals between two specific frequencies to pass, but that discriminates against signals at other frequencies. Unlike the low pass filter which only pass signals of a low frequency range or the high pass filter which pass signals of a higher frequency range, a Band Pass Filters passes signals within a certain “band” or “spread” of frequencies without distorting the input signal or introducing extra noise.

Frequency Division Multiplexing (FDM) Frequency-Division Multiplexing (FDM) is a scheme in which numerous signals are combined for transmission on a single communications line or channel. It is analog multiplexing technique. ... FDM multiplexing technique is based on orthogonality of sinusoids.

The modulation can be AM,SSB, FM or PM . The modulated signals are then added together to form a composite signal which is transmitted over a single channel . The spectrum of composite FDM signal has been shown in fig.1 . Generally, the FDM systems are used for multiplexing the analog signals .

Multiple choice classification of computer introduction to the information age physics

For separating channels in TDM, it is necessary to use ____________.

  1. Time slots

  2. Differentiation

  3. Bandpass filters

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For separating channels in TDM, it is necessary to use  Time slots.

Time-division multiplexing (TDM) is a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches at each end of the transmission line so that each signal appears on the line only a fraction of time in an alternating pattern.

Time-division multiplexing (TDM) is a method of putting multiple data streams in a single signal by separating the signal into many segments, each having a very short duration. Each individual data stream is reassembled at the receiving end based on the timing.

Time-division multiplexing (TDM) is a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches at each end of the transmission line so that each signal appears on the line only a fraction of time in an alternating pattern. It is used when the bit rate of the transmission medium exceeds that of the signal to be transmitted.

Multiple choice physics acoustics reverberation applications of reflection of sound multiple reflection of sound and reverberation

among the following, what is the most important practical application of microwave?

  1. Microwave oven

  2. TV

  3. Radar

  4. Radio-astronomy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

While microwave ovens use microwaves, RADAR (Radio Detection and Ranging) is a primary and critical practical application of microwave technology for navigation and detection.