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KCET2022PhysicsWave Optics

In case of Fraunhoffer diffraction at a single slit, the diffraction pattern on the screen is correct for which of the following statements?

Options

  1. ACentral bright band having alternate dark and bright bands of decreasing intensity on either side.
  2. BCentral dark band having uniform brightness on either side.
  3. CCentral bright band having dark bands on either side.
  4. DCentral dark band having alternate dark and bright bands of decreasing intensity on either side.

Correct answer

A. Central bright band having alternate dark and bright bands of decreasing intensity on either side.

Step-by-step solution

In case of Fraunhoffer diffraction at a single slit, the diffraction pattern on the screen, central bright band having alternate dark, and bright bands of decreasing intensity on either side.

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