When transmitter and receiver moves towards each other, the magnitude of frequency shift is
A. Positive
B. Negative
C. Zero
D. Infinity
Answer:A
When transmitter and receiver moves towards each other, the magnitude of frequency shift is
A. Positive B. Negative C. Zero D. Infinity
Explanation: When transmitter and receiver moves towards each other, the magnitude of frequency shift is positive, where as if it moves away from each other then it is negative.