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Recent questions tagged communication systems
+2
votes
1
answer
The technique used to transmit audio signals in television broadcasts is :
asked
Apr 7, 2019
in
Physics
by
kratos
atom models
modern physics
csat
jee
communication systems
class-10
jee mains
class-12
quantum physics
+2
votes
1
answer
Suppose the amplitude of modulated wave equal to the signal amplitude. Then modulation is
asked
Apr 7, 2019
in
JEE
by
kratos
cbse
jee
communication systems
jee mains
class-12
+3
votes
1
answer
Consider the following statement: The principle of total internal reflection is applicable to explain the
asked
Apr 7, 2019
in
Class 12
by
kratos
csat
ray optics and optical instruments
optics and sound
communication systems
optics
class-12
+3
votes
1
answer
Data in compact disc is stored in form of A. analogue signal B. digital signal C. noise
asked
Apr 6, 2019
in
Computer
by
kratos
isc
communication systems
class-9
icse
computer system organisation
class-12
+1
vote
1
answer
Mention the function of any two of the following used in communication system: (i) Transducer
asked
Apr 6, 2019
in
Class 12
by
kratos
class-12
communication systems
cbse
+2
votes
1
answer
Thin ozone layer on top of stratosphere is crucial for human survival. Why?
asked
Apr 5, 2019
in
Class 12
by
kratos
cbse
electronic device
electromagnetic waves
communication systems
class-12
electromagnetic spectrum
+3
votes
1
answer
Distinguish between amplitude modulation and frequency modulation.
asked
Apr 5, 2019
in
Physics
by
kratos
isc
cbse
communication
electromagnetic waves
communication systems
modulation
icse
class-12
contemporary physics
+1
vote
1
answer
Differentiate between the terms Internet and Intranet.
asked
Apr 5, 2019
in
Computer
by
kratos
communication systems
class-9
class-10
network concepts
internet basics
computer system organisation
+1
vote
1
answer
Explain the following terms: (i) W3C (ii) GSM
asked
Apr 3, 2019
in
Class 12
by
kratos
open source concepts
cbse
communication systems
network concepts
networking
internet
open standards
class-12
+2
votes
1
answer
Define modulation.
asked
Apr 3, 2019
in
Class 12
by
kratos
demodulation
isc
cbse
class-11
communication systems
biomolecules
modulation
icse
class-12
+2
votes
1
answer
The bandwidth of the amplitude modulated wave is equal to,
asked
Apr 2, 2019
in
JEE
by
kratos
cbse
jee
communication systems
jee mains
class-12
+2
votes
1
answer
For an amplitude modulated wave, the maximum amplitude is found to be 10 V while the minimum amplitude is found to be 2 V.
asked
Apr 2, 2019
in
Class 12
by
kratos
neet
aiims
jee
communication systems
jee mains
class-12
+3
votes
1
answer
A carrier voltage frequency is 1MHz and modulating signal frequency is 5KHz.
asked
Apr 1, 2019
in
Class 12
by
kratos
demodulation
bsnl
communication systems
modulation
class-12
+1
vote
1
answer
What are hackers?
asked
Apr 1, 2019
in
Class 12
by
kratos
network concepts
class-12
communication systems
+2
votes
1
answer
What is purpose of using a gateway in context of networking?
asked
Mar 31, 2019
in
Mathematics
by
kratos
network concepts
communication systems
+2
votes
1
answer
Give three reasons why modulation of a message signal is necessary for long distance transmission.
asked
Mar 30, 2019
in
Physics
by
kratos
cbse
communication
electromagnetic waves
communication systems
class-12
contemporary physics
+1
vote
1
answer
In the block diagram of a simple modulator for obtaining an AM signal shown in the figure, identify the boxes A and B. Write their functions.
asked
Mar 30, 2019
in
Class 12
by
kratos
modulation
class-12
communication systems
cbse
+3
votes
1
answer
What should be the minimum length of the antenna capable of emitting audio signal of wave length λ?
asked
Mar 30, 2019
in
JEE
by
kratos
class-12
jee
jee mains
communication systems
+2
votes
1
answer
It is known that the height of a transmission antenna should preferably be of the order. The length of antenna at a place is 0.75 m.
asked
Mar 29, 2019
in
JEE
by
kratos
cbse
jee
communication systems
jee mains
class-12
+2
votes
1
answer
To double the covering range of a TV transmission tower, its height should be multiplied by :
asked
Mar 28, 2019
in
JEE
by
kratos
cbse
jee main 2021
jee
communication systems
jee mains 2019
jee main
class-12
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