Question

Why is a spherometer so called?

Answer 1

Answer:

it has spherical surfaces

Answer 2

A spherometer is a device that does exactly what its name implies: it measures (ometer) a sphere (sphere).

Spherometer:

• A spherometer is a device used to precisely measure the radius of curvature of a sphere or curved surface.
• Originally, opticians used these instruments to measure the curvature of the surface of a lens.
• The Spherometer is a device that is used to calculate the radius of curvature of a spherical surface.
• It can, for example, be used to determine the thickness of a microscope slide or the depth of a depression in a slide.
• A Spherometer can even measure the curvature of a ball.
• A spherometer has a 1 mm pitch and 100 divisions on its disc.
• When placed on a plane glass plate, it reads 3 divisions above zero on the circular scale.
• It reads 2 mm and 63 divisions on a circular scale when resting on a convex surface.

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