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MHT CET202210 Aug 2022Evening ShiftPhysicsWave OpticsActual

A parallel beam of monochromatic light falls normally on single narrow slit. The angular width of the central maximum in the resulting diffraction pattern

Options

  1. Adecrease with decrease of slit width
  2. Bdecreases with increase of slit width
  3. Cincreases with increase of slit width
  4. Dmay increase or decrease

Correct answer

B. decreases with increase of slit width

Step-by-step solution

Width of central maximum, = 2 D d 1 d , where d is width of the slit. "The angular width of central maximum decreases with increase of slit width."

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