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COMEDK202510 May 2025Morning ShiftPhysicsWave OpticsActual

In a single slit Fraunhofer diffraction pattern obtained at normal incidence, at the angular position of the first diffraction minimum the phase difference (in radian) between the waves from the opposite edges of the slit is

Options

  1. A2
  2. Bzero
  3. C2

Correct answer

B. zero

Step-by-step solution

For the first diffraction minimum, path difference between waves from opposite edges of the slit: x = a = Phase difference: = 2 x = 2 = 2 rad

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