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When the source of light is …

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When the source of light is Linear then what is the shape of wave front
  • 3 answers

Sam S 4 years, 9 months ago

Spherical

Yogita Ingle 4 years, 9 months ago

(a) The shape of the wavefront in case of a light diverging from a point source is spherical. The wavefront emanating from a point source is shown in the given figure.

(b) The shape of the wavefront in case of a light emerging out of a convex lens when a point source is placed at its focus is a parallel grid. This is shown in the given figure.

(c) The portion of the wavefront of light from a distant star intercepted by the Earth is a plane.

Gaurav Seth 4 years, 9 months ago

Plane Wavefront

  • When the small part of a spherical or cylindrical wavefront originates from a distant source like infinity then the wavefront which is obtained is known as plane wavefront.
  • For example: -Rays coming from infinity like Sun.
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