In a single slit diffraction, the width of slits is `0.5cm`, focal length of lens is 40 cm and of first dark fringe is

In a single slit diffraction, the width of slit is 0.5 cm , focal lengths of lens is 40 cm and wavelength of light is 40 cm and wavelength of light is 4890Å . Distance of rist dark fringe is

In a single slit diffraction pattern intensity and width of fringes are

In a single-slit diffraction experiment, the width of the slit is made half of the original width:

In a single-slit diffraction experiment, the width of the slit is made half of the original width:

In a single slit diffraction experiment, the width of the slit is made double its original width. Then the central maximum of the diffraction pattern will become

In a single slit diffraction experiment, the width of the slit is made double its original width. Then the central maximum of the diffraction pattern will become

In a fraunhofer's diffraction by a slit, if slit width is a, wave length lamda focal length of lens is f, linear width of central maxima is-

In a fraunhofer's diffraction by a slit, if slit width is a, wave length lamda focal length of lens is f, linear width of central maxima is-

In a fraunhofer's diffraction by a slit, if slit width is a, wave length lamda focal length of lens is f, linear width of central maxima is-