IGCSE A Level Physics MCQs - Chapter 7

Communication Systems Multiple Choice Questions (MCQ) PDF - 4

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Communication Systems Questions & Answers PDF Download: MCQ Quiz 4

MCQ 16: With a 30 m long coaxial cable, the bandwidth can exceed

A) 100 MHz

B) 1000 MHz

C) 50 MHz

D) 300 MHz

MCQ 17: Amplitude of modulated wave is in phase with

A) output

B) system

C) frequency

D) signal

MCQ 18: Variation in amplitude or frequency of carrier wave is called

A) amplitude modulation

B) frequency modulation

C) modulation

D) bandwidth

MCQ 19: In frequency modulation, amplitude of modulated wave is

A) positive

B) negative

C) constant

D) zero

MCQ 20: High quality music only needs frequencies up to

A) 10 Hz

B) 15 Hz

C) 20 kHz

D) 15 kHz

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