Two polaroids are set crossed. The light passing through both is:
AExactly half
BSlightly more
CNearly zero
DNearly full
Answer & Solution
Correct answer: C. Nearly zero
1. The first polaroid fixes the vibration direction.
2. The second is set at right angles to it.
3. Almost nothing gets through.
_Source: NCERT Class 12 Physics Part II, Chapter 10, Wave Optics._
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