Electronics and Communication Engineering - Communication Systems
Exercise : Communication Systems - Section 4
- Communication Systems - Section 13
- Communication Systems - Section 25
- Communication Systems - Section 24
- Communication Systems - Section 23
- Communication Systems - Section 22
- Communication Systems - Section 21
- Communication Systems - Section 20
- Communication Systems - Section 19
- Communication Systems - Section 18
- Communication Systems - Section 17
- Communication Systems - Section 16
- Communication Systems - Section 15
- Communication Systems - Section 14
- Communication Systems - Section 1
- Communication Systems - Section 12
- Communication Systems - Section 11
- Communication Systems - Section 10
- Communication Systems - Section 9
- Communication Systems - Section 8
- Communication Systems - Section 7
- Communication Systems - Section 6
- Communication Systems - Section 5
- Communication Systems - Section 4
- Communication Systems - Section 3
- Communication Systems - Section 2
46.
The antenna diameter of a radar system is doubled. The maximum range will
Answer: Option
Explanation:
Range is proportional to antenna diameter.
47.
Which of the following microphones works on the piezoelectric effect?
Answer: Option
Explanation:
As per piezoelectric effect application of pressure across the faces of a crystal produces an emf across the faces.
48.
In PAL system weighting of R - Y and B - Y signals is done to
Answer: Option
Explanation:
Weighting reduces the chances of over-modulation of the transmitter carrier in the presence of highly saturated colours when picture has very light or very dark parts.
49.
In case of probability of the message is 1 to 16 then the information will be
Answer: Option
Explanation:
.
50.
The saving of power in DSB-SC modulated at 80% is
Answer: Option
Explanation:
.
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