MCQ
In a communication system, noise is most likely to affect the signal
- AAt the transmitter
- ✓In the channel or in the transmission line
- CIn the information source
- DAt the receiver
✓
Answer
Correct option: B.
In the channel or in the transmission line
b
(b) Noise is added when the waves travel in a medium because of superimposition of waves from the surroundings.
(b) Noise is added when the waves travel in a medium because of superimposition of waves from the surroundings.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The figure shows a surface $XY$ separating two transparent media, medium - $1$ and medium- $2$. The lines $ab$ and $cd$ represent wavefronts of a light wave traveling in medium- $1$ and incident on $XY$. The lines $ef$ and $gh$ represent wavefronts of the light wave in medium- $2$ after refraction.
→The phases of the light wave at $c, d, e$ and $f$ are $\phi_c,\phi_d, \phi_e$ and $\phi_f$ respectively. It is given that $\phi_c \neq \phi_f.$
The increase in the width of depletion reglon in a $p-n$ junction diode is due to
→The resistivity of iron is$1 \times {10^{ - 7}}\,ohm - m$. The resistance of a iron wire of particular length and thickness is $1\, ohm$. If the length and the diameter of wire both are doubled, then the resistivity in $ohm - m$ will be
→In Young's double slit experiment, 62 fringes are seen in visible region for sodium light of wavelength 5893 Å. If violet light of wavelength 4358 Å is used in place of sodium light, then number of fringes seen will be
A wire of resistance $12\,ohms$ per meter is bent to form a complete circle of radius $10\, cm.$ The resistance between its two diametrically opposite points, $A$ and $B$ as shown in the figure is
→A ray of light is incident on one face of a transparent slab of thickness $15 \,cm$. The angle of incidence is $60^o$. If the lateral displacement of the ray on emerging from the parallel plane is $5$ index of the material of the slab is
→Which of the following quantities is zero on an average for the molecules of an ideal gas in equilibrium?
The electron in a hydrogen atom first jumps from the third excited state to the second excited state and subsequently to the first excited state. The ratio of the respective wavelengths, $\lambda _1/\lambda _2$, of the photons emitted in this process is
→Which of the following statement best describe Nuclear fusion reaction ?
The angle between polarizer and analyzer is $45^o$. The percentage of polarized light passing through analyser is........$\%$
→