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In a Fraunhofer diffraction experiment a...

In a Fraunhofer diffraction experiment at a single slit using a light of wavelength 400 nm, the first minimum is formed at an angle of `30^(@)`. The direction `theta` of the first secondary maximum is given by :

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In a Fraunhofer diffraction experiment at single slit using a light of wavelength 400 nm , the first minimum is formed at an angle of 30^(@) . The direction theta of the first secondary maximum is given by

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