### What is spherometer and its use?

## What is spherometer and its use?

A spherometer is an instrument used 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.

## How do you measure radius of curvature using a spherometer?

Place the spherometer on the convex surface so that all the three legs rest on it. Turn the screw gently downwards till it touches the convex surface. Let a be the reading taken from the circular scale which is in line with the vertical scale. Now remove and place the spherometer on the plane mirror.

**How do you find the zero error in a spherometer?**

How to find the zero error in a spherometer? A spherometer does not have a zero error because the result obtained is by taking the difference between the final and initial reading.

**What can we measure from spherometer?**

Any surface that is curved has a radius of curvature, the radius of the sphere that approximates the surface locally. Thus a spherometer can measure the radius of curvature of an item such as a lens and curved mirrors that are spherical in shape.

### What is L in spherometer?

To find the distance between the legs of the Spherometer Measure the distance between the pricks by joining the points as to form a triangle. Note these distances (AB, BC, and AC) on the paper and take their mean as l.

### How is a spherometer used?

The Spherometer is a device use in measuring the radius of curvature of a spherical surface. For an 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.

**What is the least count of regular scale that you use daily?**

The least count of meter scale is 1mm, and that of the ammeter shown below is 2 ampere.

**What is the instrument used to measure the radius of curvature of a surface?**

#### Is there any error in spherometer?

hello, why is it said that a spherometer has no zero error or its zero error is not considered? Answer: Zero error does not occur in spherometer because result is obtained by taking the difference of final and initial reading.

#### How do you Put A spherometer on a mirror?

Lift the screw sufficiently upwards. Place the spherometer on the convex surface so that all the three legs rest on it. Turn the screw gently downwards till it touches the convex surface. Let a be the reading taken from the circular scale which is in line with the vertical scale. Now remove and place the spherometer on the plane mirror.

**How is the pitch of A spherometer determined?**

Ans: the pitch of spherometer is the distance between two consecutive threads of the screw which is parallel to the axis of rotation. Stay tuned with BYJU’S to learn more about other Physics related experiments. Test Your Knowledge On To Determine Radius Of Curvature Of A Given Spherical Surface By A Spherometer!

**What are the parts of A spherometer for convex surfaces?**

PARTS OF A SPHEROMETER Reading for convex surfaces Zero of vertical scale Reading for concave surfaces Circular scale Legs Central leg or middle screw Base circle Screw head 5.

## Which is the least count for A spherometer?

The least count for a spherometer of 100 equal divisions and of pitch 0.5 mm is, Least count = 0.5mm/100 =0.005mm SPECIAL DEFINITIONS ON SPHEROMETER MEASUREMENTS 6. Radius of curvature of a curved mirror is the radius of the sphere that was used to make it.

What is spherometer and its use? A spherometer is an instrument used 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. How do you measure radius of curvature using a…