Question

Green light (λ = 566 nm) strikes a single slit at normal incidence. Part A
What width slit will produce a central maximum that is 3.00 cm wide on a screen 2.00 m from the slit?
Express your answer to three significant figures. (Unit for answer is μm ) (Find W)

Answer 1

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

$d=\frac{2\times566\times10^{-9}\times2}{3\times10^{-2}}$

= 754.67 x 10⁻⁷ m .

= 755x 10⁻⁷ m