Electronics and Communication Engineering - Electromagnetic Field Theory - Discussion

7. 

A wave is propagated in a waveguide at frequency of 9 GHz and separation is 2 cm between walls find cut off wavelength for dominant mode.

[A]. 4 cm
[B]. 1 cm
[C]. 2 cm
[D]. 8 cm

Answer: Option A

Explanation:

.


Arun Thanga Saravanan.J said: (Aug 5, 2016)  
What does that 'm' denotes?

Abu said: (Jul 10, 2017)  
Here, m denotes mode, here modes are not given so we can take it's 1.

Karan said: (Nov 1, 2019)  
The dominant mode is '10' mode. The representation of mode is 'mn' so m=1.

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