If the width of the slit in single slit diffraction experiment is doubled, then the central maximum of diffraction pattern becomes

Question

If the width of the slit in single slit diffraction experiment is doubled, then the central maximum of diffraction pattern becomes (A) broader and brighter (B) sharper and brighter (C) sharper and fainter (D) broader and fainter

Tardigrade Admin · Accepted Answer

As the slit width increase (relative to wavelength) the width of the central diffraction maxima decreases, ie, the light undergoes less flaring by the slit. The secondary maxima also decreases in width (and becomes weaker).

Q. If the width of the slit in single slit diffraction experiment is doubled, then the central maximum of diffraction pattern becomes

broader and brighter

sharper and brighter

sharper and fainter

broader and fainter

As the slit width increase (relative to wavelength) the width of the central diffraction maxima decreases, ie, the light undergoes less flaring by the slit. The secondary maxima also decreases in width (and becomes weaker).