engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Electromagnetic Theory Electromagnetic Wave Propagation Standing Wave and Standing Wave Ratio
A uniform plane wave at the boundary of an overhead transmission line and underground cable has reflection coefficient: γ. The standing wave ratio is
1
\(\frac{{\left( {1 - \gamma } \right)}}{{\left( {1 + \gamma } \right)}}\)
2
\(\frac{{\left( {1 - \left| \gamma \right|} \right)}}{{\left( {1 + \left| \gamma \right|} \right)}}\)
3
\(\frac{{\left( {1 + \left| \gamma \right|} \right)}}{{\left( {1 - \left| \gamma \right|} \right)}}\)
4
\(\frac{{\left( {1 + {\gamma ^2}} \right)}}{{\left( {1 - \gamma } \right)}}\)