I started learning about polarization and came to learn an unpolarized light is one in which electric field symmetrically in all direction.Does this mean in a single light wave we have electric field vibrations in all direction or that an unpolarized light is a mixture of many polarized light in different directions?
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4$\begingroup$ The latter. Unpolarised light (also often called randomly polarised light) is light where there is no single axis that the E-fields of all components oscillate along. The individual axes of oscillation are randomly distributed to form the overall unpolarised/randomly polarised beam. $\endgroup$– HolznerJan 20, 2020 at 10:05
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$\begingroup$ @Holzner That looks more like an answer than a comment... $\endgroup$– PM 2RingJan 20, 2020 at 10:23
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$\begingroup$ Perpendicular to the propagation direction that is. $\endgroup$– my2ctsJan 20, 2020 at 10:25
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$\begingroup$ @PM2Ring Yeah I thought that but then it didn't have any pretty pictures and isn't really as comprehensive as I would want it to be for a good answer. Will check the guidelines again. $\endgroup$– HolznerJan 21, 2020 at 8:29
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Unpolarized light consists of light of all polarizations, thus the signal doesn't exhibit a dominance in one polarization. Your second guess is the correct one.
