In YDSE, when a glass plate of refractive index 1.5 and thickness t is placed in the path of one
Channel: Doubtnut
Date: 2020-07-26

In YDSE, when a glass plate of refractive index 1.5 and thickness t is placed in the path of one of the intefering beams (wavelength`lambda`), intensity at the position where central maximum occurred previously remains unchanged. The minimum thickness of the glass plate is