Electronics and Communication Engineering - Microwave Communication

41. 

Ridge waveguide is essentially a form of capacitively loaded guide.

A. True
B. False

Answer: Option A

Explanation:

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42. 

In a rectangular waveguide

A. the broad width is generally labelled 'a' and height 'b'
B. the broad width is generally labelled 'b' and height 'a'
C. any one of the dimensions may be labelled 'a' and the other 'b'
D. the length is labelled as 'a'

Answer: Option A

Explanation:

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43. 

Which of the following modes cannot exist in rectangular resonant cavity?

A. TE110
B. TE011
C. TM110
D. TM111

Answer: Option A

Explanation:

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44. 

In a Gunn diode oscillator drift velocity of electron is 107 cm/s and active region length is 10 x 10-4 cm. The natural frequency of oscillation is

A. 1 MHz
B. 10 MHz
C. 1 GHz
D. 10 GHz

Answer: Option D

Explanation:

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45. 

Assertion (A): An artificial transmission line can be used as a pulse generator.

Reason (R): A pulse function is used very frequently in network analysis.

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

Answer: Option B

Explanation:

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