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Slab Shift

Cover a slit with a thin sheet. Predict where the fringes slide.

Physics · Class 12 · Optical path and fringe shift · 6 simulations. For JEE, NEET and your boards.

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What you'll learn

  1. A sheet on one slit: A sheet adds (μ − 1)t of path
  2. Land on the 4th: Thickness for a shift of m fringes
  3. A sheet on each slit: Two sheets: only the difference counts
  4. Tilted light: Tilted light moves the centre along the tilt
  5. Tilt it back: Tilt the light to cancel a sheet
  6. Brightness at the old centre: The reading at the old centre