The fringes produced in diffraction patterns .

Question

The fringes produced in diffraction patterns . (A) Are of equal width (B) Are of unequal width (C) Having equal intersity for bright fringes (D) None of these.

Tardigrade Admin · Accepted Answer

In diffraction pattern minima are obtained at angles

θ_{n}

Given by:

d sin θ_{n} = nλ

Because of sinusoidal dependence the fringe widths are not equal.
In single slit diffraction pattern, central maxima is double the fringe width.

Q. The fringes produced in diffraction patterns _____.

Are of equal width

Are of unequal width

Having equal intersity for bright fringes

None of these.

In diffraction pattern minima are obtained at angles θn​ Given by: dsinθn​=nλ Because of sinusoidal dependence the fringe widths are not equal. In single slit diffraction pattern, central maxima is double the fringe width.

In diffraction pattern minima are obtained at angles $θ_{n}$
Given by: $d sin θ_{n} = nλ$
Because of sinusoidal dependence the fringe widths are not equal.
In single slit diffraction pattern, central maxima is double the fringe width.