Visible light of wavelength 6000 $ \times $ 10-8 cm falls normally on a single slit and produces a difraction pattern. It is found that the second difraction minimum is at 60o from the central maximum. If the first minimum is produced at $\theta $1, then $\theta $1, is close to :

Question

Visible light of wavelength 6000 $ \times $ 10^-8 cm falls normally on a single slit and produces a difraction pattern. It is found that the second difraction minimum is at 60^o from the central maximum. If the first minimum is produced at $\theta $₁, then $\theta $₁, is close to :

45^o

30^o

25^o

20^o

Solution

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