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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 19
31.

Assertion (A): In AM carrier component remains constant in amplitude and frequency.

Reason (R): In AM the two side bands are images of each other.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
In tape recorders the hissing noise is due to irregularities in magnetic coating on tape.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Waves travel on each of the line configurations in figure. In which case would the radiation be maximum
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
The main advantage of TDM over FDM is
TDM requires more bandwidth than FDM
less complicated in hardware than FDM
better SNR
required filter
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
In FM reception, amplitude disturbances due to static change
reduce the signal frequencies
increase the signal frequencies
disturb the signal frequencies
do not affect the signal frequencies
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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