Electromagnetic Field Theory
Radiation intensity in a given direction is the

Power radiated per unit solid angle in that direction
Power radiated per square metre
None of these
Energy radiated per square metre

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Electromagnetic Field Theory
Which of the following statement regarding waveguides is incorrect?

At waveguide can be coupled to a coaxial cable
Waveguides can handle large power at UHF and microwaves
Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves
At frequencies below the cut off value the wave progresses across the waveguide after total reflections

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Electromagnetic Field Theory
According to maximum power transfer theorem, the maximum power is absorbed by one network from another network when

The impedance of one is the complex conjugate of the other
The impedance of one of the networks is half that of the other
The impedance of one is equal to that of the other
None of these

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