A screen is placed `2m` away from the single narrow slit. Calculate the slit width if the first minimum lies `5 mm` on either side of the central maximum. Incident plane waves have a wavelength of `5000 Å`.

In Fraunhofer diffraction pattern, slit width is 0.2 mm and screen is at 2 m away from the lens. If wavelength of light used is 5000 Å , then the distance between the first minimum on either side of the central maximum is ( theta is small and measured in radian)

Light of wavelength 6 xx10^(-5) cm falls on screen at a distance of 100 cm from a narrow slit. Find the width of the slit if the first minima lies 1mm on either side of the central maximum

The fraunhofer diffraction pattern of a single slit is formed at the focal plane of a lens of focal length 1m. The width of the slit is 0.3 mm. if the third minimum is formed at a distance of 5 mm from the central maximum then calculate the wavelength of light.

In a Young's double slit experiment , the slits are Kept 2mm apart and the screen is positioned 140 cm away from the plane of the slits. The slits are illuminatedd with light of wavelength 600 nm. Find the distance of the third brite fringe. From the central maximum . in the interface pattern obtained on the screen frings from the central maximum. 3

Light of wavelength lambda=5000Å falls normally on a narrow slit. A screen is placed at a distance of 1m from the slit and perpendicular to the direction of light. The first minima of the diffraction pattern is situated at 5mm from the centre of central maximum. The width of the slit is

In a single slit diffraction of light of wavelength lambda by a slit of width e, the size of the central maximum on a screen at a distance b is

A slit is located 'at infinity' in front of a lens of focal length 1 m and is illuminated normally with light of wavelength 6000Å . The first minima on either side of the central maximum of the diffraction pattern observed in the focal plane of the lens are separated by 4 mm. What is the width of the slit? [0.3 mm]

Light of wavelength 633 nm is incident on a narrow slit. The angle between the first diffraction minimum on one side of the central maximum and the first minimum on the other side is 1.20 What is the width of the slit?