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This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
If is 0.3 for a circular wave guide operating in TM12 mode with P21=5.315, with the radius of the circular waveguide being equal to 25 mm, then the intrinsic impedance of the wave is: |
A. | 0.55 |
B. | 0.4 |
C. | 0.3 |
D. | 1.2 |
Answer» B. 0.4 | |
2. |
For TM01 mode of propagation in a circular waveguide with P01=2.405, with the inner diameter of the circular waveguide being equal to 25 mm. What is the cut off frequency for this mode of propagation? |
A. | 2.8 GHz |
B. | 6 GHz |
C. | 3.06 GHz |
D. | 4 GHz. |
Answer» D. 4 GHz. | |
3. |
What is the cutoff frequency for TE mode in a circular waveguide of radius 2 cm with P = 1.841? |
A. | 5.5 GHz |
B. | 4.3 GHz |
C. | 7.7 GHz |
D. | 8.1 GHz |
Answer» C. 7.7 GHz | |
4. |
Bessel s differential equation for a circular waveguide is: |
A. | <sup>2</sup>(d<sup>2</sup>R/ d <sup>2</sup>) + (dR/d ) + ( <sup>2</sup>kC<sup>2</sup> n<sup>2</sup>) R=0 |
B. | n<sup>2</sup>(d<sup>2</sup>R/ d <sup>2</sup>) + n(dR/d ) + ( <sup>2</sup>kC<sup>2</sup> n<sup>2</sup>) R=0 |
C. | d<sup>2</sup>R/ d <sup>2</sup> + dR/d + ( <sup>2</sup>kC<sup>2</sup> n<sup>2</sup>) R=0 |
D. | None of the mentioned |
Answer» B. n<sup>2</sup>(d<sup>2</sup>R/ d <sup>2</sup>) + n(dR/d ) + ( <sup>2</sup>kC<sup>2</sup> n<sup>2</sup>) R=0 | |