# The field configuration in two different views of waves propagation in a rectangular waveguide, as shown. the given figure represents the mode

1.  TM11

2.  TE11

3.  TE21

4.  TE10

4
Correct Answer :

TM11

Explanation :
No Explanation available for this question

# A parallel-plate guide operates in the T.E.M mode only over the frequency range 0 < f

1.  3.4 cm

2.  6.8 cm

3.  4.3 cm

4.  8.6 cm

4
Correct Answer :

3.4 cm

Explanation :
No Explanation available for this question

# In a rectangular waveguide there . one half-wave variation of electric field across the narrow dimension and two half-wave variations of electric field across the wider dimension. What is the dominant mode,

1.  TM12

2.  TE12

3.  TE21

4.  TM21

4
Correct Answer :

TM12

Explanation :
No Explanation available for this question

# 'Which one of the following gatemen. . true for electro-magnetic wave propagation through a rectangular waveguide of cross section 2ax a

1.  Critical wavelength for TE10 mode is the same as that for TE. mode

2.  Critical wavelength for TE10 mode is half that for TM10 mode

3.  Critical wavelength for TE10 mode is the same as that for TM01, mode

4.  Critical wave length for TE10 mode is double that for TE01 mode

4
Correct Answer :

Critical wavelength for TE10 mode is the same as that for TM01, mode

Explanation :
No Explanation available for this question

# The cut-off frequency is

1.  4.189 GHz

2.  5.973GHz

3.  8.438 GHz

4.  7.946 GHz

4
Correct Answer :

5.973GHz

Explanation :
No Explanation available for this question

# The intrinsic impedance is

1.  35.72Ω

2.  3978Ω

3.  1989Ω

4.  71.44Ω

4
Correct Answer :

3978Ω

Explanation :
No Explanation available for this question

# The cross-section of a wave guide is shown in the figure. It has dielectric discontinuity. If the guide operate at 8 GHz in the dominant mode, then standing wave ratio is

1.  -3.911

2.  2.468

3.  1.564

4.  4.389

4
Correct Answer :

2.468

Explanation :
No Explanation available for this question

# For TM waves in a parallel plate waveguide, the minimum attenuation arising from imperfect conductors would occur at a frequency of (fc is the cut-off frequency

1.  3fc

2.  √3fc

3.  2fc

4.  √2fc

4
Correct Answer :

√2fc

Explanation :
No Explanation available for this question

# If a⁢b⁢c, then the dominant mode is

1.  TE011

2.  TM010

3.  TE101

4.  TM101

4
Correct Answer :

TE011

Explanation :
No Explanation available for this question

# If a>b>c, then the dominant mode is

1.  TE011

2.  TM010

3.  TE101

4.  TM101

4
Correct Answer :

TM010

Explanation :
No Explanation available for this question

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