Answer:
the width of the slit is dividing therefore the distance to the minimums increases as the width of the slit decreases
Explanation:
In the diffraction phenomenon the intensity minima are described by
a sin θ = (m + ½) λ
without using trigonometry we can find an expression for the sine
tan θ = y / L
for small angles
Tan θ = sin θ/ cos θ = sin θ = y / L
a y / L = (m + ½) lam
y = (m + ½) λ L / a
we see that the width of the slit is dividing therefore the distance to the minimums increases as the width of the slit decreases
In the observation of the experiment the length of the pattern increases with the decrease in the width of the slit
