Related Questions

In amplitude modulation, the ___________ of carrier is varied according to the strength of the signal.
A Amplitude
B Frequency
C Phase
D None of the above
Overmodulation (amplitude) occurs when signal amplitude is ___________ carrier amplitude
A Equal to
B Greater than
C Less than
D None of the above
In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then
A Amplitude of distant sidebands decreases
B Amplitude of distant sidebands increases
C Amplitude of distant sidebands remains constant
D Amplitude of distant sidebands first increases, then decreases
When the modulating signal controls the frequency of the carrier, we get___________
A Phase modulation
B Amplitude modulation
C Frequency modulation
D May be any one of the above
দেওয়া আছে (i) অর্ধপরিবাহীর Majority carrier election, (ii) p-type অর্ধপরিাবাহীর Majority carrier hole এবং (iii) pure অর্ধপিরবাহীর Majority carrier hole । নিচের কোনটি সঠিক?
A i ও ii
B ii ও iii
C i ও iii
D i, ii, ও iii
For a given carrier wave, maximum undistorted power is transmitted when value of modulation is
A 1
B 0.8
C 0.5
D 0
In amplitude modulation, bandwidth is ___________ the audio signal frequency
A Thrice
B Four times
C Twice
D None of the above
When a wave strikes a vertical breakwater in deep water, it is reflected back and on meeting another advancing wave of similar amplitude merges and rises vertically in a wall of water. This phenomenon is called
A Surf
B Clapotis
C Fetch
D Swell
Modulation in which the two binary values are represented by two different amplitudes of the carrier frequency is known as
A Amplitude-shift keying
B Amplitude
C Amplitude modulation
D Aloha
E None of the above
What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?
A 1
B >1
C None of these

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