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AP EAMCET202422 May 2024Morning ShiftPhysicsWave OpticsActual

If a slit of width ' x ' was illuminated by red light having wavelength 6500 Å , the first minima was obtained at =30^ . Then the value of ' x ' is

Options

  1. A1.4 10⁻⁴ ~m
  2. B1.2 10⁻⁵ ~m
  3. C1.3 ~m
  4. D1.2 ~m

Correct answer

C. 1.3 ~m

Step-by-step solution

In diffraction, for first minima, aligned & x =1 =6500 10⁻¹⁰ & x= 6500 10⁻¹⁰ 30^ =1.3 ~m aligned

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