A lens of focal length fis cut along the diameter into two

Last updated: 6/14/2023

A lens of focal length fis cut along the diameter into two identical halves In this process a layer of the lens t in thickness is lost then the halves are put together to form a composite lens Im between the focal plane and the composite lens a narrow slit is placed near the focal plane The slit is emitting monochromatic light with wavelength 2 Behind the lens a screen is located at a distance L from it NDUZ 3234 1 3 tf 2 1 2 d Lt 2f S S S optics an Find the fringe width for the pattern obtained under giver arrangement on the screen af 425 25 2t p V D 4 L number 19 The expression for the number of visible maxima which are obtained through above said arrangement will turn out to be 2 tf 22 dk 2L12 2f