A single slit of width `0.20 mm` is illuminated with light of wavelength `500 nm`. The observing screen is placed `80 cm` from the slit. The width of the central bright fringe will be

A single slit of width 0.20mm is illuminated with light of wavelength 500nm . The observing screen is placed 80cm from the slit. The width of the central bright fringe will be

A single slit of width 0.1mm is illuminated by parallel light of wavelength 6000Å, and diffraction bands are observed on a screen 40cm from the slit. The distance of third dark band from the central bright band is:

A single slit of width 0.1mm is illuminated by parallel light of wavelength 6000Å, and diffraction bands are observed on a screen 40cm from the slit. The distance of third dark band from the central bright band is:

A single slit of width 0.1 mm is illuminated by a parallel beam of light of wavelength 6000Å and diffraction bands are observed on a screen 0.5 m from the slit. The distance of the third dark band from the central bright band is _______ mm.

A single slit of width 0.1 mm is illuminated by a parallel beam of light of wavelength 6000Å and diffraction bands are observed on a screen 0.5 m from the slit. The distance of the third dark band from the central bright band is _______ mm.

A single slit of width 0.1 mm is illuminated by a parallel beam of light of wavelength 6000Å and diffraction bands are observed on a screen 0.5 m from the slit. The distance of the third dark band from the central bright band is _______ mm.

A single slit of width 0.1 mm is illuminated by a parallel beam of light of wavelength 6000 Å and diffraction bands are observed on a screen 0.5 m from the slit. The distance of the third dark band from the central bright band is:

Two slits, 4 mm apart, are illuminated by light of wavelength 6000 Å . What will be the fringe width on a screen placed 2 m from the slits