1
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For commercial telephonic communication, the frequency range adequate for speech signals is

A

$20 \mathrm{~Hz}-20 \mathrm{kHz}$

B

$300 \mathrm{~Hz}-3100 \mathrm{~Hz}$

C

$200 \mathrm{MHz}-600 \mathrm{MHz}$

D

$300 \mathrm{kHz}-8000 \mathrm{kHz}$

2
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The maximum distance between the transmitting and receiving antennas is $D$. If the heights of both transmitting and receiving antennas are doubled, then the maximum distance between the two antennas is
A
$2 D$
B
$D \sqrt{2}$
C
$4 D$
D
$\frac{D}{\sqrt{2}}$
3
TG EAPCET 2024 (Online) 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
For an amplitude modulated wave, the maximum and minimum amplitudes are found to be 10 V and 2 V respectively. Then, the modulation index is
A
$\frac{1}{3}$
B
$\frac{3}{4}$
C
$\frac{1}{5}$
D
$\frac{2}{3}$
4
TG EAPCET 2024 (Online) 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The process of the loss of strength of a signal while propagating through a medium is
A
damping
B
attenuation
C
amplification
D
modulation

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