Suppose that you had two marked polarizers (i.e., their directions of polarization are marked).
Predict how you should orient the polarizers with respect to one another so that the light transmitted through the polarizers would have (1) minimum intensity or (2) minimum intensity. Discuss your reasoning with your partners and then check your predictions.
When two polarizers are oriented with respect to each other such that the light transmitted through them has minimum intensity, the polarizers are said to be crossed.
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