High quality music only needs frequencies up to
A) 10 Hz
B) 15 Hz
C) 20 kHz
D) 15 kHz
Correct Answer:
Verified
Q3: Data in compact disc is stored in
Q4: With a 30 m long coaxial cable,
Q5: Amplitude of modulated wave is in phase
Q6: Variation in amplitude or frequency of carrier
Q7: In frequency modulation, amplitude of modulated wave
Q9: Binary system has base
A)10
B)11
C)1
D)2
Q10: In FM, frequency of modulated wave varies
Q11: Unwanted signal that distorts a transmitted signal
Q12: First communication satellites used frequencies of
A)6 GHz
Q13: A wave of frequency 1 GHz has
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