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World 5 · Wave Interference · 8 min · PRO

The double slit

Bright fringes where d·sinθ = mλ

PRO · Light & Optics

World 5: Wave Interference is part of PRO

The first world of Light & Optics is free. PRO opens the other 43 lessons in 5 worlds — simulations, quizzes and all.

  • Two sources, one pattern
  • Fringe spacing
  • Standing waves
  • Focus a near object
  • Correct a myopic eye
PRO includes
  • All 26 labs — every world, every lesson
  • Practice exams and certificates

$8.33/mo, billed yearly ($99.99) · or $39.99 monthly

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