Angular width of central maxima in the Fraunhofer diffraction pattern of a slit is measured.
Channel: Doubtnut
Date: 19/01/2020

Angular width of central maxima in the Fraunhofer diffraction pattern of a slit is measured. The slit is illuminated by light of wavelength `6000�`. When the slit is illuminated by light of another wavelength, the angular width decreases by 30%. The wavelength of this light will be