YDSE is carried with two thin sheets of thickness 10.4`mu` m  each and refractive index `
Channel: Doubtnut
Date: 2020-07-12

YDSE is carried with two thin sheets of thickness 10.4`mu` m  each and refractive index `mu_1 = 1.52 and mu_2 = 1.40` covering the slits `S_1 and S_2` respectively. If white light of range 400nm to 780 nm is used, then which wavelength will form maxima exactly at point O, the centre of the screen