JEE Main & Advanced
Physics
Communication System / संचार तंत्र
Question Bank
Self Evaluation Test - Communication System
question_answer
An audio signal consists of two distinct sounds: one a human speech signal in the frequency band of \[200\text{ }Hz\] to \[2700\text{ }Hz,\] while the other is a high frequency music signal in the frequency band of \[10200\text{ }Hz\] to \[15200\text{ }Hz\]. The ratio of the AM signal bandwidth required to send both the signals together to the AM signal bandwidth required to send just the human speech is:
A)\[2\]
B)\[5\]
C)\[6\]
D)\[3\]
Correct Answer:
C
Solution :
[c] Ratio of AM signal Bandwidths \[=\frac{15200-200}{2700-200}=\frac{15000}{2500}=6.\]