let us think with all our common sense.
The indicator which reads the reading on the main scale is the zero mark on the vernier.
On the main scale each mm is divided into half mm. Hence the reading would be read for divisions on the main scale. ie say I start from 3 cm.
3 cm, 3.05 cm, 3.1 cm, 3.15 cm, 3.2 cm, 3.25 cm and so on.
But for our convenience let us read as 3.000 cm, 3.050 cm, 3.100 cm, 3.150 cm, 3.200 cm, 3.250 cm and so on,
Now say your indicator ie zero marking on the vernier is lying in between say 3.200 and 3.250 cm. Then main scale reading would be recorded by taking the lower value namely 3.200 cm.
Now the vernier would give the last two decimal values for accuracy. If the 43rd division on the vernier get coincided with some line on the main scale, then the vernier reading will be got by multiplying this vernier coincidence 43 by the least count. The least count will usually be 0.001 cm.
So the vernier scale reading will be 0.043 cm
Now by adding this along with the main scale reading ie 3.200 cm we get 3.243 cm.
Another example: If suppose the indicator lies in between 6.450 and 6.500. The vernier division 17 get coincided.
Main scale reading is 6.450 cm
Vernier scale reading is 0.17 cm
So the total reading ie accurate reading is 6.467 cm
UNNATI CHANDANE
STD:XII
The smallest possible reading on a vernier scale of a traveling microscope is typically 0.001 cm or 0.01 mm. This allows for precise measurement of distances or dimensions.
The accuracy of a traveling microscope typically ranges from 0.01 mm to 0.001 mm, depending on the quality and calibration of the instrument. Calibration and proper usage are essential to maintain accuracy.
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the least count of travelling microscope = 0.001 cm
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The least count of a traveling microscope is typically around 0.01 mm or 0.001 cm. This means that the smallest distance that can be measured using the device is around 0.01 mm. The least count is determined by the precision of the measuring scale or vernier scale on the microscope.
Their Vernier scale consists of two readings; the Vernier scale and the main scale. One can read that by the first line is the main scale and the next line is the Vernier reading.
A traveling microscope is a type of microscope that has a moveable stage, allowing for precise measurement and observation of small objects or samples. Its uses include measuring small distances, determining the thickness of an object, examining small details, and calibrating other instruments.
To measure the diameter of a capillary tube using a traveling microscope and vernier caliper, place the capillary tube on a flat surface. View the capillary tube through the traveling microscope to measure the external diameter. Then, use the vernier caliper to measure the internal diameter by gently inserting the capillary tube between the jaws of the caliper to get an accurate measurement. Subsequently, calculate the average diameter using the two measurements.
reading and looking through a microscope
why it is important to take good care of a microscope?
Yes