Register

GATE ECE 2014 Set 3 | Question: 17

• recategorized by
420 views
0 0 votes

Let $x(t)= \cos(10\pi t)+\cos(30\pi t)$ be sampled at $20 Hz$ and reconstructed using an ideal low-pass filter with cut-off frequency of $20 Hz$. The frequency/frequencies present in the reconstructed signal is/are

  1. $5$ Hz and $15$ Hz only
  2. $10$ Hz and $15$ Hzonly
  3. $5$ Hz, $10$ Hz and $15$Hz only
  4. $5$ Hz only

Please log in or register to answer this question.

Answer:
← Previous · GATE ECE 2014 Set 3 ...Next → · GATE ECE 2014 Set 3 ...
← Previous in category · GATE ECE 2014 Set 3 ...Next in category → · GATE ECE 2014 Set 4 ...
Position:
Show:
Voting & Accepting an answer helps improve the community

Related questions

0 0 votes
0 0 answers
402
402 views
Milicevic3306 asked Mar 26, 2018
402 views
GATE ECE 2014 Set 3 | Question: 24
Consider an air filled rectangular waveguide with a cross-section of $5 \: cm \times 3 \: cm $. For this waveguide, the cut-off frequency (in MHz) of $TE_{21}$ mode is __...
0 0 votes
0 0 answers
347
347 views
Milicevic3306 asked Mar 26, 2018
347 views
GATE ECE 2014 Set 3 | Question: 22
The phase response of a passband waveform at the receiver is given by $$\varphi (f)= -2\pi \alpha (f-f_{c})-2\pi \beta f_{c}$$where $f_{c}$ is the centre frequency, and $...
0 0 votes
0 0 answers
333
333 views
Milicevic3306 asked Mar 26, 2018
333 views
GATE ECE 2014 Set 3 | Question: 25
In the following figure, the transmitter $Tx$ sends a wideband modulated $RF$ signal via a coaxial cable to the receiver $Rx$. The output impedance $Z_{T}$ of $Tx$, the ...
0 0 votes
0 0 answers
531
531 views
Milicevic3306 asked Mar 26, 2018
531 views
GATE ECE 2014 Set 3 | Question: 32
In the circuit shown in the figure, the angular frequency $\omega$ (in rad/s), at which the Norton equivalent impedance as seen from terminals $b-b'$ is purely resistive,...

Add Synced Question

×