In figure , S is a monochromatic point source emitting light of wavelength A = 500nm A thin lens of circularshape and focal length 0.10m is cut into two identical halves L3 and L2 by a plane passing through adiameter. The two halves are placed symmetrically about the central axis So with a gap of 0.5mm. Thedistance along the axis from S to L1 and L2 is 0.15m while that from Li and L2 to O is 1.30m. Thescreen at O is normal to SO.If the gap between Li and L2 is reduced from its original value of 0.5mm, will the distance OA increase,decrease, or remain the same?AINLYA0.5 mmScreen0.15 m1.30 m

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Answered: In figure , S is a monochromatic point…

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