A lens of diameter 5 0 cm and focal length f 25 0 cm was cut

Last updated: 6/5/2023

A lens of diameter 5 0 cm and focal length f 25 0 cm was cut along the diameter into two identical halves In the process the layer of the lens a 1 00 mm in thickness was lost Then the halves were put together to form a composite lens In it s focal plane a narrow slit was placed emitting monochromatic light with wavelength 0 60 um Behind the lens a screen was located at a distance b 50 cm from it Find number of possible maxima