Physics

Problem

In a double-slit experiment the fringe width is

β = 0.30\,\text{mm}

. Count the number of complete bright fringes that lie entirely between

y = 1.1\,\text{mm}

and

y = 4.7\,\text{mm}

on the same side of the central maximum. a) 14 b) 11 c) 12 d) 13