Question

What is the wavelength of light in Newton ring experiment, when the diameter of 15th bright ring is 1.16 cm .The radius curvature of plano- convex lens is 400 cm-

Answer 1

Answer:

Formula used : The wavelength λ of light is given by the formula: Where, Dn+m = diameter of (n+m)th ring, Dn = diameter of nth ring, m = an integer number (of the rings) R = radius of curvature of the curved face of the plano-convex lens.