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EAMCET Engineering 2008 Solved Paper

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Question : 26

Total: 160

In Fraunhofer diffraction experiment, L is the distance between screen and the obstacle, b is the size of obstacle and λ is wavelength of incident light. The general condition for the applicability of Fraunhofer diffraction is

‌
b2
Lλ
≫1
‌
b2
Lλ
=1
‌
b2
Lλ
<<1
‌
b2
Lλ
≠1

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