Fraunhoffer diffraction pattern is observed at a distance of 2m on screen, when a plane-wavefront of 6000Å is incident perpendicularly on 0.2 mm wide slit.Width of central maxima is:

Light of wavelength 5000 A^(0) is incident on a slit. The first minimum of the diffraction pattern is observed to lie at a distance of 5 mm from the central maximum on a screen placed at a distance of 3 m from the slit. Then the width of the slit is

Light of wavelength 6000 overset (@)(A) is incident normally on a slit . The first minimum in the diffraction pattern is observed to be at a distance of 6 mm from the central maximum on a screen , which is at a distance of 2 m from the slit . Calculate the width of the slit .

Light of wave length 600 nm is incident on a single slit. The first minimum of the diffraction pattern is obtained at a distance of 4 mm from the centre. The distance between the screen and the slit is 2 m. The width of the slit is

The light of wavelength 6328Å is incident on a slit of width 0.2mm perpendicularly, the angular width of central maxima will be

Light of wavelength 5000Å is incident normally on a slit. The first minimumof the diffraction pattern is formed at adistance of 5 mm from centra maximum. The screen is situated at a distance of 2 m from the slit. The slit width is

A beam of light of wavelength 400 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 2 m away from the slit. It is observed that 2nd order minima occurs at a distance of 2 mm from the position of central maxima. Find the width of the slit.

A beam of light of wavelength 400 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 2 m away from the slit. It is observed that 2nd order minima occurs at a distance of 2 mm from the position of central maxima. Find the width of hte slit.

Light of wavelength 5000Å is incident normally on a slit. First minimum of diffraction pattern is formed at a distance of 5 mm from the central maximum. If slit width is 0.2 mm, then distance between slit and screen will be :