Light Appears to Travel in a Straight Line because

  1. It consists of small particles.
  2. The velocity of light is very large
  3. The wavelength  of light is very small
  4. Light is reflected by the surrounding
Monis Rasool Professor Asked on 3rd June 2015 in Physics.
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    The wavelength of light is very small

    Light Appears to travel in a straight line because the wavelength of light is very small.  The direction of each emitted photon may well be random unless it is from a well order crystalline medium but after emission they follow a straight path thru four dimensional space.

    Monis Rasool Professor Answered on 4th June 2015.
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