Answer:
755 x 10⁻⁷ m
Explanation:
D = distance of screen
=2. m
d is width of slit = ?
wave length λ = 566 nm
Width of central maxima = 2 λD /d
= 3.00 x 10⁻² =2 λD /d
[tex]d=\frac{2\times566\times10^{-9}\times2}{3\times10^{-2}}[/tex]
= 754.67 x 10⁻⁷ m .
= 755x 10⁻⁷ m
