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A polarizing sheet is placed in front of a laser pointer. If the polarizing sheet is rotated through 180∘ , it is observed that the brightness of the laser dot appears to change during the rotation. We can conclude that the laser is polarized. changing its brightness. monochromatic. unpolarized.

A polarizing sheet is placed in front of a laser pointer. If the polarizing sheet is rotated through 180∘ , it is observed that the brightness of the laser dot appears to change during the rotation. We can conclude that the laser is polarized. changing its brightness. monochromatic. unpolarized.

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A polarizing sheet is placed in front of a laser pointer. If the polarizing sheet is rotated through 180∘ , it is observed that the brightness of the laser dot appears to change during the rotation. We can conclude that the laser is polarized. changing its brightness. monochromatic. unpolarized.

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