Newton s rings are observed in reflected light using light

Last updated: 6/21/2023

Newton s rings are observed in reflected light using light of wavelength 5890 The radius of the convex surface of the lens is 100 cm A liquid is put between curved surface of lens and plate The diameter of 10th ring is 4 2 m m Calculate the refractive index of liquid when a ring is dark and b ring is bright Ans 1 335 and 1 268