How to find type of polarization of electromagnetic wave?
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Hey mate here is your answer》》
In such questions, the options are linear, circular and elliptical (LP, CP and EP). Under CP and EP, the options are given in terms of clockwise/anticlockwise or sometimes left handed/right handed. You should have clear understanding when it is termed as right/left handed.
Note that many books say that clockwise polarization is left-hand polarization and counter-clockwise as right-handed one, which is not true. The sense of polarization is traced along the direction of propagation. (whether the wave is going in +z/-z direction i.e coming out of the plane of paper or going into the plane of paper.)
For example, if the polarization is clockwise, and direction of propagation is +z (out of plane of paper) something like (1) in this fig, than you have to make your thumb out of paper first, and to have clockwise circulation, you have to use, left hand. So, it has left-hand sense. If the direction is -z (2) in fig, i.e. into the plane of paper, then you have to point your thumb into the plane of paper, then to have clockwise rotation, you need to use your right hand, that’s why it has right-hand sense. Many books take the +z direction for granted, and hence assign the name left-handed to clockwise and otherwise.
Hope this answer will help you..《《
In such questions, the options are linear, circular and elliptical (LP, CP and EP). Under CP and EP, the options are given in terms of clockwise/anticlockwise or sometimes left handed/right handed. You should have clear understanding when it is termed as right/left handed.
Note that many books say that clockwise polarization is left-hand polarization and counter-clockwise as right-handed one, which is not true. The sense of polarization is traced along the direction of propagation. (whether the wave is going in +z/-z direction i.e coming out of the plane of paper or going into the plane of paper.)
For example, if the polarization is clockwise, and direction of propagation is +z (out of plane of paper) something like (1) in this fig, than you have to make your thumb out of paper first, and to have clockwise circulation, you have to use, left hand. So, it has left-hand sense. If the direction is -z (2) in fig, i.e. into the plane of paper, then you have to point your thumb into the plane of paper, then to have clockwise rotation, you need to use your right hand, that’s why it has right-hand sense. Many books take the +z direction for granted, and hence assign the name left-handed to clockwise and otherwise.
Hope this answer will help you..《《
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