A source of monochromatic light of wavelength 0.6 `mu`m is placed at a distance 0.3 m from a narrow slit, the distance between consecutive maxima is found to be 0.15 m m on a screen 0.5 m from the slit. Calculate width of the slit.

Monochromatic light of wavelength 580 nm is incident on a slit of width 0.30 mm. The screen is 2m from the slit . The width of the central maximum is

Two fine slits are placed very close to each other and they are illuminated by a strong beam of light of wavelength 5900Å . Fringes are obtained at a distance of 0.3 m from the slits. The fringe width is found to be 5.9 xx 10^(-5)m . Calculate the distance between the slits.

Two parallel slits 0.6mm apart are illuminated by light source of wavelength 6000Å . The distance between two consecutive dark fringe on a screen 1m away from the slits is

Light d of wavelength 5000Å is incident normally on a slite. The first minimum of the distance of 5 mm from the central maximum on a screen placed at a distance of 2 m from the slit. The width of slit is

A parallel beam of light of wavelenght 600 nm is incident normally on a slit of width 'd' . If the distance between the slit and screen is 0.8 m and distance of 2nd order maximum from the centre of the screen is 15mm , calculate the width of the slit.

Monochromatic light with wavelength 420 nm is incident on a slit with width 0.050 mm. The distance from the slit to a screen is 3.5 m. Consider a point on the screen 2.2 cm from the central maximum. Calculate (a) theta for that point, (b) alpha , and (c) the ratio of the intensity at that point to the intensity at the central maximum.