Electronics and Communication Engineering - Communication Systems

26.
In tape recorder erase head is active during recording.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
Which of the following microphones has maximum distortion?
Ribbon
Condenser
Crystal
Carbon
Answer: Option
Explanation:
No answer description is available. Let's discuss.

28.
The relation between bandwidth B, modulating frequency fm and frequency deviation Δf for a sinusoidally modulated FM signal is
B = Δf + fm
B = 2(Δf + fm)
B = fm - Δf/
B = 2(fm - Δf)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
FM broadcast is used in
VHP range
UHF range
MF range
both VHP and UHF range
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
The power requirement of a RADAR used in military operations is
a few watts
about 500 W
about 2000 W
a few megawatts
Answer: Option
Explanation:
No answer description is available. Let's discuss.