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KCET2018PhysicsWave Optics

A plane wavefront of wavelength ( ) is incident on a slit of width ( a ). The angular width of principle maximum is

Options

  1. A( a )
  2. B( (2 ) a )
  3. C( a )
  4. D( a (2 ) )

Correct answer

B. ( (2 ) a )

Step-by-step solution

Given, wavelength ( = ; ) width of slit ( = a . ) Therefore, angular width of central maximum ( 2 = 2 a )

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