Mht Cet
Wave Optics
MHT CET 2026 15th April Evening Shift
MCQ+1 / -02026
A double slit experiment is immersed in water of refractive index $1.33$. The slit separation is 1 mm, distance between slit and screen is $1.33$ m. The slits are illuminated by light of wavelength 6300 $\text{\AA}$. The fringe width is