The Newton's Ring microscope supports several experiments:
· Exp. 1: To determine the wavelength of sodium light.
· Exp. 2: To determine the refractive index of a liquid using Newton's rings apparatus.
· Exp. 3: To find the radius of curvature of a plano-convex lens using the Newton's rings experiment (given λ = 5893 Å).
· Exp. 4: To find the thickness of a thin sheet of paper (air-wedge test).

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