A mono chromatic sorce of light wavelenngth 5893A0 illuminates a 0.03mm wide slit.Find out the position of the first minima on a screen kept at a distance of 1m.

By using the formula y1=x (tan(tita))

    but here we get tita value by using sin tita=wavwlength  / width of slit

   here tita is small so we take      tita=wavwlength  / width of slit

    then substitute value in above equation.

Ans :-0.019643333