The modulation index used in amplitude modulation of a message signal of peak voltage 
is 0.5 . By how much the peak voltage of the carrier signal be changed, so as to obtain the modulation index of 0.8 , keeping the peak voltage of the message signal same as before?
A
Increased by 
B
Reduced by 
C
Increased by 
D
Reduced y 
Text Solution
Verified by ExpertsThe correct answer is:
B
Change in carrier amplitude,
And, 
Change in carrier amplitude
Hence, carrier frequency is reduced by 
.
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