Question

The beam of a radar should be

a.

very narrow

b.

very wide

c.

neither too narrow nor very wide

d.

either (b) or (c)

Answer: (a).very narrow

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. The beam of a radar should be

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. TE₁₀ mode of propagation of electromagnetic energy in waveguides can be thought of as

Q. Consider the following statement:
SWR of a transmission line is infinite when the load is

1. a short circuit
2. a complex impedance
3. an open circuit
4. a pure reactance

Which of the above statements are correct?

Q. In a reflex klystron the output frequency is determined primarily by resonant frequency of cavity.

Q. In TE₁₀ mode the largest electric field in a rectangular wave guide, occurs

Q. Which modes of circular wave guides have circular symmetry?

Q. In a microwave resistor the wall thickness is made as small as possible to

Q. In a klystron amplifier the transit time of electron passing the gap in the cavity should be

Q. In a cable with ∈r = 4, the wave velocity is

Q. In a backward wave oscillator the efficiency

Q. Consider the following statements

1. Fading of signals is generally greatest near radio horizon.
2. Fading of signals is generally greatest in shadow zone.
3. Fading is small when a good optical path is present.

Which of the above statements are correct?

Q. The use of coaxial microwave line should be restricted to frequencies

Q. Generally the wall thickness of rectangular waveguide is

Q. Frequency range for satellite communication is

Q. For a given operating frequency a waveguide has more power handling capacity than a coaxial line.

Q. VSWR = Emax/Emin.

Q. Power monitor and reflectometer use the principle of

Q. A line slightly longer than λ/4 length and short circuited at far end behaves as

Q. A waveguide twist is used to change the plane of polarization.

Q. In a multicavity klystron amplifier the electron velocity of the order of

Q. At a frequency equal to cutoff frequency in a rectangular wave guide

Recommended Subjects

Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!