On a hazy morning, sunbeams passing through small openings in roof tiles appear as straight bright shafts.…

On a hazy morning, sunbeams passing through small openings in roof tiles appear as straight bright shafts. This observation directly demonstrates that:
  1. Light travels along straight line paths
  2. Light can bend easily around obstacle edges
  3. Light is absorbed completely by dust particles
  4. Light travels faster through solids than gases

Solution

Visible rays formed by scattering off dust particles show straight pathways, proving the rectilinear propagation of light.

Asked in: Homi Bhabha Practice

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