Spherometer - MeitY OLabs

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Spherometer :-
A Spherometer is an instrument for measuring either the curvature of a surface or very small thickness of flat materials. The Spherometer is a device use in measuring the radius of curvature of a spherical surface. For example, it can be used to measure the thickness of a microscope slide or the depth of depression in a slide. Even the curvature of a ball can be measured using a Spherometer.

The Spherometer consists of a micrometer screw threaded into a small tripod with a vertical scale fastened to it. The head of the screw has a graduated disk used to measure fractional turns of the screw. The vertical scale is used to measure the height or depth of the curvature of the surface.

This video explains how to determine (a) the thickness of a glass plate and (b) the radius of curvature of a given spherical surface, using spherometer.