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KCET2008PhysicsWave Optics

In Young's double slit experiment, a third slit is made in between the double slits. Then

Options

  1. Aintensity of fringes totally disappears
  2. Bonly bright light is observed on the screen
  3. Cfringes of unequal width are formed
  4. Dcontrast between bright and dark fringes is reduced

Correct answer

D. contrast between bright and dark fringes is reduced

Step-by-step solution

If a third slit is made between the double slits, then contrast between bright and dark fringes is reduced.

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