the least count of travelling microscope = 0.001 cm
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.
to calculate the least count of travelling microscope first see the no. of division on the main scale say between 12 and 13 there are 20 divisions and the no.of division on vernier scale is 50 then 1 msd = 20 division 1 division = 1/20 msd=0.05 1vsd = 50 division least count = msd/vsd =0.05/50=0.001 so least count is 0.001 cm
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.
The circular fringes are obtained while viewing the lens through the travelling microscope. It is formed on the lens of the travelling microscope.
A transmission electron microscope.
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 least count of a microscope is the smallest distance that can be measured accurately. It is typically determined by the precision of the microscope's objective lens and the calibration of its stage micrometer, usually ranging from 0.01 mm to 0.001 mm.
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To find the refractive index of a glass slab using a travelling microscope, you would first place the glass slab on a flat surface. Using the travelling microscope, measure the apparent shift in the position of the object when viewed through the glass slab. By knowing the thickness of the glass slab and the shift in the position, you can calculate the refractive index using the formula: Refractive index (n) = (apparent shift + 1) / actual shift.
Do not touch lenses. ALWAYS start with the least magnification, and work upwards. Clean slides and microscope when finished with it. Cover microscope with dust cover when not in use. Never swing the microscope.
Compound light microscope