IGCSE A Level Physics Competitive Exam MCQs – Practice Test 5 (Chapter 7)
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MCQ 21: Binary system has base:
MCQ 22: In FM, frequency of modulated wave varies with:
MCQ 23: Unwanted signal that distorts a transmitted signal is called:
MCQ 24: First communication satellites used frequencies of:
MCQ 25: A wave of frequency 1 GHz has wavelength of:
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