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KEAM 2021 Physics and Chemistry Solved Paper
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© examsnet.com
Question : 37
Total: 120
Pick out the INCORRECT statement from the following
Speech signal requires a bandwidth of
2800
H
z
The approximate bandwidth to transmit music is
20
k
H
z
The bandwidth of video signals required to transmit pictures is
4.2
M
H
z
The bandwidth usually allocated to transmit TV signals is
6
M
H
z
Digital signals are usually in the form of sine waves
Validate
Solution:
Amongst the given options, statement given in option (e) is incorrect but rest are correct.
It can be corrected as,digital signals have only two values as shown below
Analog signals are usually in the form of sine waves.
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