A lens of focal length f 40 cmis cut along the diameter into

Last updated: 6/11/2023

A lens of focal length f 40 cmis cut along the diameter into two equal halves In this process a layer of thickness t 1 mm is lost The halves are then put together to form a composite lens In between focal plane and the composite lens a narrow slit is placed symmetrically very close to the focal plane such that u f The slit is emitting monochromatic light of wavelength 0 6 m Behind the lens a screen is located at a distance L 0 5 m from it as shown f 40 cm TuleIfl 0 5 m Screen 0 Fringe width is 0 12 mm Fringe width is 0 24 mm