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Direction: The question has a paragraph followed by two statements, Statement -1 and statement -2 . Of the given four alternatives after the statements, choose the one that describes the statements. A thin air film is formed by putting the convex surface of a plane - convex lens over a plane glass plate. With monochromatic light, this film gives an interference pattern due to light reflected from the top (convex) sur

Options

  1. AStatement-1 is true, Statement-2 is true; Statement-2 is the correct explanation of Statement-1.
  2. BStatement-1 is true, Statement-2 is true; Statement-2 is not the correct explanation of Statement-1.
  3. CStatement- 1 is false. Statement- 2 is true.
  4. DStatement-1 is true, Statement- 2 is false.

Correct answer

A. Statement-1 is true, Statement-2 is true; Statement-2 is the correct explanation of Statement-1.

Step-by-step solution

As light enters from air to glass it suffers a phase change on and therefore at centre there will be destructive interference.

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