JEE Discussions Electromagnetic Waves Recent Questions
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Laser Beams Are Used To Measure Long Distances Because
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A Laser Beam Is Used For Carrying Out Surgery Because It
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Choose The Correct Statement
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The Attenuation In Optical Fiber Is Mainly Due To
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A Laser Is A Coherent Source Because It Contains
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The Electromagnetic Waves Of Frequency 2 MHz To 30mhz Are Used
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Maximum Usable Frequency (MUF) In F - Region Layer Is
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An Antenna Behaves As Resonant Circuit Only When Its Length Is
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The Ratio Waves Of Frequency 300MHz To 3000MHz Belong To
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For Television Broadcasting, The Frequency Employed Is Normally
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Broadcasting Antennas Are Generally
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The Carrier Frequency Generated By A Tank Circuit Containing 1 NF Capacitor And 10 UH Indicator Is
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A Laser Beam Of Pulse Power
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Through Which Mode Of Propagation, The Radio Waves Can Be Sent From One Place To Another
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In Which Frequency Range, Space Waves Are Normally Propagated
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The Step Index Fiber Has A Relative Refractive Index Of 0.88% . What Is The Critical Angle At The Corecladding Interface
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The Process Of Regaining Of Information From Carrier Wave At The Receiver Is Termed As
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The Waves That Are Bent Down By The Ionosphere Are
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An Example Of Point To Point Mode Of Communication Is
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Amplitude Modulation Has
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AM Is Used For Broadcasting Because
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A Signal Of 5 KHz Frequency Is Amplitude Modulated On A Carrier Wave Of Frequency 2 MHz. The Frequencies Of The Resultant Signal Is/are
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In Short Wave Communication, Wave Of Which Of The Following Frequencies Will Be Reflected Back By The Ionospheric Layer
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