# Suppose that the angle of incidence of plane waves on a double slit with 0.010 mm...

###### Question:

Suppose that the angle of incidence of plane waves on a double slit with 0.010 mm is β = 20° (instead of the 0° angle we considered in class). If λ = 532 nm, then what angle θ1 does the m = 1 far-field interference fringe make? Hint: You must take into account the path difference for the light rays incident on the slits. [ans. 23.3°]

 1) Question to be Graded Manually.

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