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Authored by Asst.Prof., Chennai
Physics, Mathematics
12th Grade - University
Used 38+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is Amplitude Modulation?
Change in amplitude of carrier according to modulating signal amplitude
Change in frequency of carrier according to modulating signal amplitude
Change in amplitude of carrier according to modulating signal frequency
Change in amplitude of modulating signal according to carrier signal amplitude
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When aliasing takes place?
Sampling signals less than Nyquist Rate
Sampling signals more than Nyquist Rate
Sampling signals equal to Nyquist Rate
Sampling signals at a rate which is twice of Nyquist Rate
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Normal human voice frequency range
20kHZ-200M HZ
20HZ-20KHZ
10KHZ-100KHZ
30MHZ-300MHZ
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is suitable to connect woofer from the input through
band pass filter
band stop filter
low pass filter
high pass filter
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A modem is classified as low if speed of data rate is
upto 600bps
upto 200bps
upto 400bps
upto 500bps
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