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Light of a wavelength of 550nm passes through a 10 µm wide slits on to a...

Light of a wavelength of 550nm passes through a 10 µm wide slits on to a screen 1m away from the slit.

A) How far either side of the central maximum at the 1st, 2nd and 3rd dark regions in the diffraction pattern?

B) What is the maximum possible number of bright fringes that could be viewed either side of the central maximum in perfect conditions?

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