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  • Question

  • Assertion (A): A line of length slightly more than Assertion (A): A line of length slightly more than and open circuited at far end is equivalent to an and open circuited at far end is equivalent to an inductive reactance.

    Reason (R): A line of length slightly more than Assertion (A): A line of length slightly more than and open circuited at far end is equivalent to an and short circuited at far end behaves as a capacitive reactance.


  • Options
  • A. Both A and R are correct and R is correct explanation of A
  • B. Both A and R are correct but R is not correct explanation of A
  • C. A is correct but R is wrong
  • D. A is wrong but R is correct

  • Correct Answer
  • Both A and R are correct but R is not correct explanation of A 

    • Microwave Communication problems

    Search Results

    • 1. A waveguide connected to a circularly polarized antenna must be able to efficiently propagate both vertically and horizontally polarised waves.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. Which one of the following is also called 'rat race'?

    • Options
    • A. E plane tee
    • B. H plane tee
    • C. Magic tee
    • D. Hybrid ring
      • Discuss
    • 3. Radar principle is used in

    • Options
    • A. detection of aircraft
    • B. burglar alarms
    • C. garage door openers
    • D. all of the above
      • Discuss
    • 4. Which of the following is not used as a microwave mixer or detector?

    • Options
    • A. PIN diode
    • B. Crystal diode
    • C. Schottky barrier diode
    • D. Backward diode
      • Discuss
    • 5. Slotted line can be used for measurement of high frequencies

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. In TE mode of waveguide Ez = 0

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The speed at which axial electric field due to signal advances in a TWT is equal to

    • Options
    • A. speed of light
    • B. (speed of light) (helix pitch helix circumference)
    • C. (speed of light) (helix circumference helix pitch)
    • D. (speed of light) (helix pitch) (helix circumference)
      • Discuss
    • 8. A line of length slightly less than and short circuited at far end behaves as

    • Options
    • A. inductance L
    • B. capacitance C
    • C. L and C in series
    • D. L and C in parallel
      • Discuss
    • 9. In directional coupler of the given figure, the terms |S14| and |S23| of scattering matrix are nearly

    • Options
    • A. 1 each
    • B. 0.5 each
    • C. 0.1 each
    • D. 1 and 0.5 respectively
      • Discuss
    • 10. Depth of penetration does not depend on frequency.

    • Options
    • A. True
    • B. False
      • Discuss

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