How many interference fringes could be seen

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Reference no: EM13333855

1. A double slit has two slits of width 0.650 mm separated by a distance between centres of 2.340 cm. With a mercury arc as a source of light, the green line at ? = 546.074 nm is used to observe the Fraunhofer diffraction pattern 100 cm behind the slits.

(a) Assuming the eye can resolve fringes that subtend 1 minute of arc, what magnification would be required to just resolve the interference fringes? (Assume the eyes near point is at 25 cm)

(b) How many interference fringes could be seen under the diffraction central maximum?

Reference no: EM13333855

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