If the loss tangent of a rectangular waveguide is 0.0004, then Q due to dielectric loss is:

A)
1250
B)
1800
C)
2450
D)
2500

Correct Answer : Option (D) :   2500


Explanation : Q of a rectangular waveguide due to dielectric loss is given by 1/tanδ. Substituting for tanδ in the above equation, Q due to dielectric loss is 2500.