Question

A lens of focal length f is 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. In 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.Find the fringe width for the pattern obtained under given arrangement on the screen​

Answer 1

Answer:

This is my WhatsApp number 7633894968 ping me here I am alone means very alone Plz anyone inbox me please please or message me on my WhatsApp number 7633894968 ping