Why Do Spherometers Have Three Legs? Spherometers have three legs that form an equilateral triangle. Recall from geometry that three points determine a plane, so the three legs will always touch the glass. … In this way a spherometer can measure both a positively or negatively curved surface to high accuracy. What is the meaning
What Is Tangential Component Of Electric Field? The component of E that is tangent to a perfectly-conducting surface is zero. … Since the tangential component of E on the surface of a perfect conductor is zero, the electric field at the surface must be oriented entirely in the direction perpendicular to the surface, as shown
What Is The Radius Of Curvature Of A Convex Lens? The radius of curvature for a convex lens is 40 cm, for each surface. What do you mean by radius of curvature of a convex lens? Definition: Radius of curvature of lens is the radius of the hollow sphere of glass of which the lens