Question

conclusion of spherometer​

Answer 1

Answer:

A spherometer is an instrument for the precise measurement of the radius of curvature of a sphere or a curved surface. Originally, these instruments were primarily used by opticians to measure the curvature of the surface of a lens.

Explanation:

The spherometer directly measure a sagittal, h. Using the mean length between two outer legs, a, the spherical radius R is given by the formula:

{\displaystyle R=(h/2)+(a^{2}/6h)} R=(h/2)+(a^{2}/6h)

Using different spherometer without legs and with circle cup and dial gauge, D is the diameter of circle cup, the spherical radius R is given by the formula:

{\displaystyle R=(h/2)+(D^{2}/8h)} {\displaystyle R=(h/2)+(D^{2}/8h)}

Number of divisions on the circular scale = 100 .

Since the spherometer is essentially a type of micrometer, it can be employed for purposes other than measuring the curvature of a spherical surface. For example, it can be used to measure the thickness of a thin plate.

Answer 2

An instrument or device which is used to measure the radius of curvature of any given sphere is called spherometer.

Explanation:

• A spherometer is a device which is used to take  precise measurement of the radius of curvature of a sphere or a curved surface.
• High degree of precision is maintained while determining the thickness of the thin plates.
• Spherometer​ helps in  measuring the depression in flat surfaces with precision.
• These type of  instruments are used by opticians in order to measure the curvature of the surface of a lens.
• spherometer is generally consists of  micrometer.
• It can be used for measuring the curvature of a spherical surface.
• They can be used to measure the thickness of a thin plate of a curved surface or a sphere.

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