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Consider a message signal 
which is bandlimited to 
, where 
is in Hz. Consider the following two modulation schemes for the message signal:
- Double sideband-suppressed carrier (DSB-SC):
- Amplitude modulation (AM):
Here, 
and 
are the amplitude and frequency (in Hz) of the carrier, respectively. In the case of AM, 
denotes the modulation index.
Consider the following statements:
(i) An envelope detector can be used for demodulation in the DSB-SC scheme if 
for all 
.
(ii) An envelope detector can be used for demodulation in the AM scheme only if for all .
Which of the following options is/are correct?
is TRUE
is FALSE
is TRUE
is FALSE
As long as 
, envelop detector can be used to detect 
and 
signals
mentions the word "can", this true as can at times ensure
(D) mention the word "only", it is not a must condition for , only the bound is on , thus: 
is wrong.