IGCSE A Level Physics Exam MCQs – Practice Test 4 (Chapter 7)

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Communication Systems Test Questions and Answers PDF Download: MCQ 4

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

100 MHz
1000 MHz
50 MHz
300 MHz

MCQ 17: Amplitude of modulated wave is in phase with:

output
system
frequency
signal

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

amplitude modulation
frequency modulation
modulation
bandwidth

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

positive
negative
constant
zero

MCQ 20: High quality music only needs frequencies up to:

10 Hz
15 Hz
20 kHz
15 kHz

Communication Systems Exam Prep – IGCSE A Level Physics Notes App & e-Book

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