Answers of Quiz 1916 (Marconi and Radio)

1. On 25 April 1874
2. Guglielmo Marconi
3. Italy
4. Radio
5. He shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".
6. Wireless telegraphy came to mean Morse code transmitted by radio waves (electromagnetic waves), initially called "Hertzian waves", discovered by Heinrich Hertz in 1886. The first practical wireless telegraphy transmitters & receivers were developed by Guglielmo Marconi beginning in 1895. By 1910 communication by Hertzian waves was universally referred to as "radio", & the term wireless telegraphy has been largely replaced by the more modern term "radiotelegraphy".
7. Marconi's law is the relation between height of antennas & maximum signaling distance of radio transmissions. Guglielmo Marconi enunciated at one time an empirical law that, for simple vertical sending & receiving antennas of equal height, the maximum working telegraphic distance varied as the square of the height of the antenna.
8. On 20 July 1937
9. 63 years
10. On 13 February
11. Radio waves are type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light.
12. James Clerk Maxwell was 1st to predict radio waves by mathematical work done in 1867.
13. Heinrich Hertz demonstrated the reality of Maxwell's electromagnetic waves by experimentally generating radio waves in his laboratory in 1887.
14. Wireless is using waves to transmit signals or having no wires
15. In 1899
16. Wireless communication is a type of data communication that is performed & delivered wirelessly.
17. Frequency is number of waves that pass a fixed place in a given amount of time.
18. Hertz (Hz) is a SI unit of frequency, equal to one cycle per second
19. 3 KHz to 300 GHz
20. Electromagnetic Waves which can travel through vacuum of outer space
21. Ionosphere
22. A radio station is a set of equipment necessary to carry on communication via radio waves. Generally, it is a receiver or transmitter, an antenna, & some smaller additional equipment necessary to operate them. Radio stations play a vital role in communication technology as they are heavily relied on to transfer data & information across the world.
23. Frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. This contrasts with amplitude modulation, in which the amplitude of the carrier wave varies, while the frequency remains constant.
24. Television is an advance upon sound broadcasting since pictures & not just speech sound can be sent by it.
25. Radio Communication is the transmission of signals by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air & the vacuum of space. Information is carried by systematically changing (modulating) some property of the radiated waves such as amplitude, frequency, or phase.
26. On 3 June 1947
27. On 15 August 1947
28. Lahore Radio Station
29. City FM 89 Karachi
Suno Pakistan FM 89.4 Karachi
Suno Pakistan FM 89.4 Hyderabad
University of Karachi FM 90.6 Karachi (Campus Radio)
Radio ONE FM 91 Karachi
FM 91 Music Highway Tando Adam
FM 92 Music Highway Nooriabad
FM 92 Music Highway Khairpur
Radio FM 93 (by Radio Pakistan)
Planet FM 94 (by Radio Pakistan)
Radio FM 101 (by Radio Pakistan)
Saut ul Quran (MW-585-KHz & MW-630-KHz) (by Radio Pakistan)
Humara FM 94.6 Karachi
Radio Active FM 96 Karachi
Ziauddin University FM 98.2 Karachi (Campus Radio)
Ziauddin University FM 98.2 Karachi (Campus Radio)
Josh FM 99 Karachi/Lahore
FM100 Karachi
FM100 Hyderabad
FM 101 Karachi (by Radio Pakistan)
FM 101 Hyderabad
MAST FM 103 Karachi
HOT FM 105 Karachi
HOT FM 105.4 Nawabshah
HOT FM 105 Hyderabad
HUM FM 106.2 Karachi
HUM FM 106.2 Sukkur
ZAB FM 106.6 Karachi
Apna Karachi FM 107
Samaa FM 107.4 Karachi
IBA Campus Radio
ZabFM 106.6, SZABIST, launched the first educational radio, a non-commercial radio broadcast station, exclusively to impart and disseminate education to the students
Apna Karachi 107, focused on Karachi, famous for live traffic and city updates
FM 90.6, Karachi University campus Radio Station