In a YDSE, if the slits are of unequal widths,

Question

In a YDSE, if the slits are of unequal widths, (A) fringes will not be formed (B) the positions of minimum intensity will not be completely dark (C) bright fringe will not be formed at the centre of the screen (D) distance between two consecutive bright fringes will not be equal to the distance between two consecutive dark fringes.

Tardigrade Admin · Accepted Answer

If width of the slits are different, the ray undergoing interference will be of different intensity. So, when they will be out of phase, they will not completely cancel each other, resulting in minimum non zero intensity.

Q. In a YDSE, if the slits are of unequal widths,

fringes will not be formed

the positions of minimum intensity will not be completely dark

bright fringe will not be formed at the centre of the screen

distance between two consecutive bright fringes will not be equal to the distance between two consecutive dark fringes.

If width of the slits are different, the ray undergoing interference will be of different intensity. So, when they will be out of phase, they will not completely cancel each other, resulting in minimum non zero intensity.