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JEE Main201815 Apr 2018Morning ShiftPhysicsWave OpticsActual

Light of wavelength 550 ~nm falls normally on a slit of width 22.0 10⁻⁵ ~cm . The angular position of the second minima from the central maximum will be (in radians)

Options

  1. A8
  2. B12
  3. C4
  4. D6

Correct answer

A. 8

Step-by-step solution

If angular position of 2^ nd maxima from central maxima is then aligned & = (2 n -1) 2 a = 3 2 a = 3 550 10⁻⁹ 2 22 10⁻⁷ & = 8 rad aligned

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