JEE Discussions Communication Systems Recent Questions
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The Special Theory Of Relativity Is Based On The Frame Of Reference Which Has Constant...?
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The Rest Mass Of A Body Is M0 , If It Moves With A Velocity Of 0.6 C, Then Its Relativistic Mass Is M, Then
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The Galaxy In Which We Live Is
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Flash Spectrum Confirms A/an
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Fainted Stars Are Called
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Ozone Layer Blocks The Radiations Of Wavelength
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How Many Photons Are Emitted By A Laser Source Of 5 * 10^-3 W Operating At 632.2 Nm In 2s ?
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Antenna Is
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An Antenna Is Of Height 500 M. What Will Be Its Range (Radius Of The Earth Is 6400 Km)?
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What Happens Inside Optical Fibre?
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What Is The Minimum Length Of Antenna Required To Transmit A Radio Signal Of Frequency 20 MHz ?
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The Characteristic Impedance (Z0 ) Of Free Space Is
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Which One Of The Following Is A Full Duplex Transmission System?
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If Sky Wave With A Frequency Of 50 MHz Is Incident On D Region At An Angle Of 30 Degree , Then Angle Of Refraction Is
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What Fraction Of The Surface Area Of The Earth Can Be Covered To Establish Communication By One Geostationary Satellite?
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What Should Be Minimum Length Of Antenna For Efficient Transmission Of Signals Of Wavelength A ?
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The Distance Of Coverage Of A Transmitting Antenna Is 12.8 Km. Then, The Height Of The Antenna Is (given That Radius Of The Earth = 6400 Km)
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The Waves Used For Line Of Sight (LOS) Communication Are
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If A Radio Receiver Amplifies All The Signal Frequencies Equally Well, It Is Said To Have High
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In Frequency Modulated Wave,
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If Ec= 20 Sin 10^5 Pie T And Em= 10 Sin 400 Pie T Are Carrier And Modulating Signals Respectively, The Modulation Index Is
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In A Video Signal For Transmission Of Picture, What Value Of Bandwidth Is Used In Communication System?
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The Principle Of Laser Action Involves
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