Elements of Communication System
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PHXII15:COMMUNICATION SYSTEMS

356719 The audio signal

1 Can be sent directly over the air for large distance
2 Cannot be sent directly over the air for large distance
3 Possesses very high frequency
4 Possesses very low velocity
PHXII15:COMMUNICATION SYSTEMS

356720 The attenuation in optical fibre is mainly due to

1 Absorption
2 Scattering
3 Neither absorption nor scattering
4 Both (1) and (2)
PHXII15:COMMUNICATION SYSTEMS

356721 A digital signal possesses

1 Continuously varying values
2 Only two discrete values
3 Only four discrete values
4 Constant values
PHXII15:COMMUNICATION SYSTEMS

356722 Device that converts one form of energy into another is called

1 Transmitter
2 Transducer
3 Receiver
4 Channel
PHXII15:COMMUNICATION SYSTEMS

356723 If \(\mu_{1}\) and \(\mu_{2}\) are the redfractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimized by having

1 \(\mu_{1} < \mu_{2}\)
2 \(\mu_{1}>\mu_{2}\)
3 \(\mu_{1}=\mu_{2}\)
4 None of these
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PHXII15:COMMUNICATION SYSTEMS

356719 The audio signal

1 Can be sent directly over the air for large distance
2 Cannot be sent directly over the air for large distance
3 Possesses very high frequency
4 Possesses very low velocity
PHXII15:COMMUNICATION SYSTEMS

356720 The attenuation in optical fibre is mainly due to

1 Absorption
2 Scattering
3 Neither absorption nor scattering
4 Both (1) and (2)
PHXII15:COMMUNICATION SYSTEMS

356721 A digital signal possesses

1 Continuously varying values
2 Only two discrete values
3 Only four discrete values
4 Constant values
PHXII15:COMMUNICATION SYSTEMS

356722 Device that converts one form of energy into another is called

1 Transmitter
2 Transducer
3 Receiver
4 Channel
PHXII15:COMMUNICATION SYSTEMS

356723 If \(\mu_{1}\) and \(\mu_{2}\) are the redfractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimized by having

1 \(\mu_{1} < \mu_{2}\)
2 \(\mu_{1}>\mu_{2}\)
3 \(\mu_{1}=\mu_{2}\)
4 None of these
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PHXII15:COMMUNICATION SYSTEMS

356719 The audio signal

1 Can be sent directly over the air for large distance
2 Cannot be sent directly over the air for large distance
3 Possesses very high frequency
4 Possesses very low velocity
PHXII15:COMMUNICATION SYSTEMS

356720 The attenuation in optical fibre is mainly due to

1 Absorption
2 Scattering
3 Neither absorption nor scattering
4 Both (1) and (2)
PHXII15:COMMUNICATION SYSTEMS

356721 A digital signal possesses

1 Continuously varying values
2 Only two discrete values
3 Only four discrete values
4 Constant values
PHXII15:COMMUNICATION SYSTEMS

356722 Device that converts one form of energy into another is called

1 Transmitter
2 Transducer
3 Receiver
4 Channel
PHXII15:COMMUNICATION SYSTEMS

356723 If \(\mu_{1}\) and \(\mu_{2}\) are the redfractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimized by having

1 \(\mu_{1} < \mu_{2}\)
2 \(\mu_{1}>\mu_{2}\)
3 \(\mu_{1}=\mu_{2}\)
4 None of these
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PHXII15:COMMUNICATION SYSTEMS

356719 The audio signal

1 Can be sent directly over the air for large distance
2 Cannot be sent directly over the air for large distance
3 Possesses very high frequency
4 Possesses very low velocity
PHXII15:COMMUNICATION SYSTEMS

356720 The attenuation in optical fibre is mainly due to

1 Absorption
2 Scattering
3 Neither absorption nor scattering
4 Both (1) and (2)
PHXII15:COMMUNICATION SYSTEMS

356721 A digital signal possesses

1 Continuously varying values
2 Only two discrete values
3 Only four discrete values
4 Constant values
PHXII15:COMMUNICATION SYSTEMS

356722 Device that converts one form of energy into another is called

1 Transmitter
2 Transducer
3 Receiver
4 Channel
PHXII15:COMMUNICATION SYSTEMS

356723 If \(\mu_{1}\) and \(\mu_{2}\) are the redfractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimized by having

1 \(\mu_{1} < \mu_{2}\)
2 \(\mu_{1}>\mu_{2}\)
3 \(\mu_{1}=\mu_{2}\)
4 None of these
NEET DIGITAL LIBRARY
PHXII15:COMMUNICATION SYSTEMS

356719 The audio signal

1 Can be sent directly over the air for large distance
2 Cannot be sent directly over the air for large distance
3 Possesses very high frequency
4 Possesses very low velocity
PHXII15:COMMUNICATION SYSTEMS

356720 The attenuation in optical fibre is mainly due to

1 Absorption
2 Scattering
3 Neither absorption nor scattering
4 Both (1) and (2)
PHXII15:COMMUNICATION SYSTEMS

356721 A digital signal possesses

1 Continuously varying values
2 Only two discrete values
3 Only four discrete values
4 Constant values
PHXII15:COMMUNICATION SYSTEMS

356722 Device that converts one form of energy into another is called

1 Transmitter
2 Transducer
3 Receiver
4 Channel
PHXII15:COMMUNICATION SYSTEMS

356723 If \(\mu_{1}\) and \(\mu_{2}\) are the redfractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimized by having

1 \(\mu_{1} < \mu_{2}\)
2 \(\mu_{1}>\mu_{2}\)
3 \(\mu_{1}=\mu_{2}\)
4 None of these