[" 20.Angular width of central maximum in the Fraunhofer's diffraction pattern "],[" is measured.Slit is illuminated by the light of wavelength "6000 AA" .If slit is "],[" illuminated by the light of another wavelength,angular width decreases by "],[" 30%.Wavelength of light used is "],[" A) "3500 AA],[" B) "4200 AA],[" C) "4700 AA],[" D) "6000 AA]

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

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

Angular width of central maximum in the Fraunhofer diffraction pattern of a slit is measured. The slit is illuminated by light of wavelength 6000Å . When the slit is illuminated by light of another wavelength, the angular width decreases by 30% . Calculate the wavelength of this light. The same decrease in the angular width of central maximum is obtained when the original apparatus is immersed in a liquid. Find the refractive index of the liquid.

Angular width of central maximum in the Fraunhoffer diffraction pattern of a slit is measured. The slit is illuminated by light of wavelength 6000Å . When the slit is illuminated by light of another wavelength, the angular width decreases by 30% . Calculate the wavelength of this light. The same decrease in the angular width of central maximum is obtained when the original apparatus is immersed in a liquid. Find the refractive index of the liquid.

Angular width of centrl maximum in the Fraunhofer diffraction pattern of a slit is measured.The slit is iluminated by igth of wavelength 6,000 overset@A .When the slit is illuminated by light of another wavelength,the angular width decreases y 30%.Calculate the wavelength of this light. The same decrease in the angular width of centrl maximum is obtained ,when the original appartus is immersed in a liquid.Fin refractive index of the liquid.

The angular width of central maximum of a Fraunhofer diffraction fringe formed by a narrow slit is measured. For this, the slit is illuminated by a light of wavelength 6000 Å. When the slit is illuminated by light of another wavelength, it is found that the angular width decreases by 30%. Find the wavelength of the light used in the second case. Now, in the first case, the total set-up of the experiment is immersed in a liquid. It is found that, the angular width of central maximum decreases by same amount. Calculate the refractive index of the liquid.

The slit of width d is illuminated by light of wavelength 5000 Å . If Fresnel distance is 2 m . What is the slit width ?

Find the half angular width of the central bright maximum in the fraunhofer diffraction pattern of a slit of width 12xx10^(-5)cm when the slit is illuminated by monochromatic light of wavelength 6000 Å.

Find the half angular width of the central bright maximum in the fraunhofer diffraction pattern of a slit of width 12xx10^(-5)cm when the slit is illuminated by monochromatic light of wavelength 6000 Å.