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Calculate the angles at which the first dark band and the next bright band are formedin the Fraunhofer diffraction pattern of a slit 0.3 mm wide (λ = 5890Å).

Question

Calculate the angles at which the first dark band and the next bright band are formedin the Fraunhofer diffraction pattern of a slit 0.3 mm wide (λ = 5890Å).
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Solution 1

To calculate the angles for the first dark band and the next bright band in the Fraunhofer diffraction pattern, we can use the formula for single-slit diffraction:

θ = λ / b

where:

  • θ is the angle of the diffraction pattern,
  • λ is the wavelength of the light, and
  • b is the width of the slit.

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