Angle Modulation – Exercise – 1

1. In FM the carrier deviation is determined by –

(a) Modulating
(b) Frequency
(c) Either of the above
(d) None of the above

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.

2. Pre- emphasis is used to amplify –

(a) Low frequency
(b) High frequency
(c) Both a and b above
(d) None of the above

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.

3. In FM –

(a) Noise decreases by increasing deviation
(b) Noise decreases by decreases deviation
(c) Noise decreases by maintaining deviation constant
(d) None of the above

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.

4. Which of the following oscillator is not in FM –

(a) Crystal oscillator
(b) Hartley oscillator
(c) Colpitts oscillator
(d) All of the above

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.

5. The frequency of the stereo sub carrier signal in FM broadcasting is –

(a) 19 kHz
(b) 38 kHz
(c) 50 kHz
(d) 76 kHz

Answer
Answer : (b)
Explanation
No answer description available for this question. Let us discuss.
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