In the ideal double-slit experiment, when a glass-plate(refractive index 1.5) of thickness
Channel: Doubtnut
Date: 2020-07-05

In the ideal double-slit experiment, when a glass-plate(refractive index 1.5) of thickness t is introduced in the path of one of the interfering beams (wave-length `lamda`), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass-plate is