Broadcasting and Television Media

A cassette recorder-cum-player allows students to record their own voice and compare it with a model pronunciation, providing immediate feedback and repetition, which is highly effective for language learning.

Knowing is Everything is the tagline for the Discovery Channel. It emphasizes the channel's focus on information and education.

Radio Mirchi, a popular Indian FM radio station, uses the tagline 'It's Hot' to reflect its energetic and youthful content.

MPEG is the standard for digitally compressing movies.

Signs is not an audio-visual media of advertising, but outdoor or display media. Sign Boards are displayed on buses, railway coaches, street crossings etc.. The message is not heard and the product is also not shown, but the message is to be read.

Magazine advertising must not be used for illiterate people. As message is imparted through a magazine, advertisement has to be read.

This is the correct option. A medium access control technique for multiple access transmission media is called aloha.

Microwave transmission is a line-of-sight technology that is effective for point-to-point communication where physical cables are difficult to install.

Prasar Bharati is India's largest public broadcaster. Public broadcasting includes radio, television and other electronic media outlets whose primary mission is public service. Public broadcasters receive funding from diverse sources including license fees, individual contributions, public financing and commercial financing.

A baseband signal is the original, un-modulated signal generated by a source before it is shifted to a higher frequency range for transmission. Modulation is the process of superimposing this signal onto a carrier.

Twisted pair, fibre optic, and coaxial cable are all guided transmission media (physical cables). Microwave is an unguided transmission medium (wireless).

The constellation points (0, 1) and (0, 2) have the same phase (90 degrees) but different amplitudes (1 and 2). Therefore, the modulation is Amplitude Shift Keying (ASK).

TRP stands for Television Rating Point. It is a metric used to measure the popularity of television programs.

A modem is an external or internal device whose function is to transmit digital data over communication lines. Traditional modems once used frequently with dial-up networks convert analog data from telephone lines into computer digital data. Broadband modems transfer digital data between two digital devices. However, they do not modulate data into images.