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Question 20

Match List I with List II
LIST I                                           LIST II
A. AM Broadcast                         I. 88 - 108 MHz
B. FM Broadcast                          II. 540 - 1600 kHz
C. Television                               III. 3.7 - 4.2 GHz
D. Satellite Communication       IV. 54 MHz - 590 MHz
Choose the correct answer from the options given below:

AM (Amplitude Modulation) broadcasting uses medium frequency waves because they can travel long distances due to ground wave propagation. The standard AM broadcast frequency range is:

540 kHz - 1600 kHz

Therefore,

A → II

FM (Frequency Modulation) broadcasting uses very high frequency (VHF) waves which provide better sound quality with less noise interference. The FM broadcast band is:

88 MHz - 108 MHz

Therefore,

B → I

Television transmission uses VHF and UHF frequency bands for transmitting audio and video signals. The given range suitable for television broadcasting is:

54 MHz - 590 MHz

Therefore,

C → IV

Satellite communication uses microwaves because they can pass through the atmosphere with less attenuation and support high bandwidth communication. The frequency range given is:

3.7 GHz - 4.2 GHz

Therefore,

D → III

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