General Awareness

Broadcasting and Television Media

1,065 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

Nowadays, almost every family has a television set. (Negative)

  1. Nowadays, there is any family without a television set.

  2. Nowadays, there is no family without a television set.

  3. Nowadays, there is no family with a television set.

  4. Nowadays, there is any family but for a television set.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To transform a positive statement into a negative one while keeping the meaning, use a double negative construction. 'There is no family without a television set' effectively means every family has one.

Multiple choice

Television is one of the most wonderful inventions of modern science. (Positive)

  1. Very few inventions of modern science is as wonderful as television.

  2. Very few inventions of modern science are as wonderful as television.

  3. NO other inventions of modern science are as wonderful as television.

  4. No other invention of modern science is as wonderful as television.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When transforming a superlative to a positive degree, 'one of the' requires 'Very few... are as... as'. This maintains the plural subject agreement.

Multiple choice

What Kind of Waves do iPhones Use?

  1. Cell Waves

  2. X-rays

  3. Microwaves

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

iPhones use radio waves in the microwave frequency range for cellular communication. While these are technically radio waves, they occupy the microwave portion of the electromagnetic spectrum (around 1-6 GHz). Option C is more specific and technically accurate for cellular bands.

Multiple choice

What Waves are Used to Broadcast Signals to Satellites?

  1. Radiowaves

  2. Microwaves

  3. Infrared-rays

  4. Electromagnetic Spectrum Waves
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Radio waves are commonly used for long-distance communication, including satellite transmissions, due to their ability to travel through the atmosphere.

Multiple choice physics electromagnetic waves properties and uses of different radiation electromagnetic spectrum spectrum

The waves used by artificial satellites for communication is the

  1. microwaves

  2. infrared waves

  3. radio waves

  4. X-rays
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The microwaves are preferred in order to communicate with the artificial satellites which are orbiting the earth at a particular height from the surface of the earth. The microwaves are preferred because they can penetrate through the Earth's atmosphere very easily and reach the target satellite.

Multiple choice physics electromagnetic waves properties and uses of different radiation electromagnetic spectrum spectrum

Which radiation is used for satellite communication?

  1. Micro waves

  2. X rays

  3. Gamma rays

  4. Infra red rays
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Microwaves are a form of electromagnetic radiation with wavelengths ranging from as long as one meter to as short as one millimeter; with frequencies between 300 MHz (0.3 GHz) and 300 GHz. This broad definition includes both UHF and EHF (millimeter waves), and various sources use different boundaries. 
Microwave technology is extensively used for point-to-point telecommunications (i.e. non-broadcast uses). Microwaves are especially suitable for this use since they are more easily focused into narrower beams than radio waves, allowing frequency reuse; their comparatively higher frequencies allow broad bandwidth and high data transmission rates, and antenna sizes are smaller than at lower frequencies because antenna size is inversely proportional to transmitted frequency. Microwaves are used in spacecraft communication, and much of the world's data, TV, and telephone communications are transmitted long distances by microwaves between ground stations and communications satellites.

Multiple choice physics electromagnetic waves properties and uses of different radiation electromagnetic spectrum spectrum

For transmission of speeches, talks, music, dramas etc ........... is used

  1. radio broadcast transmitter

  2. radio telegraph transmitter

  3. navigation transmitter

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

$Answer:-$ A

Radio Broadcast Transmitters: -Theses transmitters are designed for transmitting speeches, talks, music, dramas etc for the information and reception of people. These broadcast transmitters may be either amplitude modulated or frequency modulated. The A.M transmitters operate on long waves, medium waves and short waves and radiate carrier power as low as about 1 kW and high as 100 kW. The F.M broadcast transmitters operate on very short waves or on ultra waves and radiate carrier power of the order of 100 kW or so.

Multiple choice

What is the process of converting an information signal into a radio wave called?

  1. Modulation

  2. Demodulation

  3. Transmission

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

Modulation is the process of converting an information signal into a radio wave by varying one or more of its characteristics, such as amplitude, frequency, or phase.

Multiple choice

Which type of modulation is used in AM radio broadcasting?

  1. Amplitude Modulation

  2. Frequency Modulation

  3. Phase Modulation

  4. Single-Sideband Modulation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

AM radio broadcasting uses amplitude modulation, where the amplitude of the carrier wave is varied in accordance with the information signal.

Multiple choice

Which type of modulation is used in digital radio broadcasting?

  1. Amplitude Modulation

  2. Frequency Modulation

  3. Phase Modulation

  4. Quadrature Amplitude Modulation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Digital radio broadcasting uses quadrature amplitude modulation (QAM), which is a digital modulation technique that uses two carrier waves with different phases to transmit data.

Multiple choice

What is the range of frequencies used for radio communications?

  1. 3 kHz to 30 MHz

  2. 30 MHz to 300 MHz

  3. 300 MHz to 3 GHz

  4. 3 GHz to 30 GHz
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

The range of frequencies used for radio communications spans from 3 kHz to 30 GHz, covering various applications such as AM and FM broadcasting, mobile communications, satellite communications, and radar.