TS EAMCET · Physics · Wave Optics
In Fraunhofer diffraction experiment, \(L\) is the distance between screen and the obstacle, \(b\) is the size of obstacle and \(\lambda\) is wavelength of incident light. The general condition for the applicability of Fraunhofer diffraction is
- A \(\frac{b^2}{L \lambda} \gg 1\)
- B \(\frac{b^2}{L \lambda}=1\)
- C \(\frac{b^2}{L \lambda} \ll 1\)
- D \(\frac{b^2}{L \lambda} \neq 1\)
Answer & Solution
Correct Answer
(C) \(\frac{b^2}{L \lambda} \ll 1\)
Step-by-step Solution
Detailed explanation
The general condition for Froun hofer diffraction is \(\frac{b^2}{L \lambda} \ll 1\).
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