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Polaroid Stack

Send a wave through slots and polaroids. Predict what comes out.

Physics · Class 12 · Polaroids and Malus's law · 8 simulations. For JEE, NEET and your boards.

A picture of the Polaroid Stack simulation

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What you'll learn

  1. Rope through a slot: A slot passes one direction
  2. Shake or push: Only a transverse wave feels a slot
  3. Two slots: Each slot takes its own cos
  4. Two polaroids: Half, then cos²
  5. Angles from the first: Use the turn between next-door sheets
  6. Sheets at 45°: Count the factors
  7. Set the middle one: A middle sheet opens a crossed pair
  8. Two beams, one polaroid: Each beam takes its own cos²